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Pushing technology forward

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Created by Gestalt Two weeks ago, 17 Mar 2026
Gestalt
QLD, 14858 posts
24 Mar 2026 6:27PM
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Chris 249 said..

Gestalt said..



ptsf1111 said..
It doesn't work like that though. Fat = fast as they say in slalom windsurfing. Apart from early planing, you want to have more weight for speed.



As pointed out about, the small 2% overall difference in weight doesn't do much. However, it's a 30% lighter board and surely that feels like a massive difference on the water. That alone might allow a good sailor to get more out of the board or get planing earlier, not sure. In wave sailing, it's a no brainer.





I don't think it's that straight forward.. 2kg on a board means less volume, more drag etc.. depending on where it's added makes a big difference. adding 2kg to a sailor not so much because we are using leverage against the rig.

here is a test. grab a 2kg dumbell or sand bag and strap it to your board and go for a sail. Bet you notice it.

whilst I have no empirical data on this many years ago when I was course racing we used the idea that 1kg of weight was equivalent to 3kg when including drag etc. I'd love it if there are any naval architects out there that have actual data around this.




Yes, the sailor can notice extra weight, but that doesn't mean that the water can "feel" the extra weight to an extent that is really noticeable because the water doesn't give a stuff whether the weight is in the sailor or the board. To use an analogy, people can certainly feel a bicycle that weighs 2kg more, but the physics show that that a 2kg heavier bike is only about .16 km/h slower at about 35kmh. So feeling the weight doesn't mean you can feel the speed loss..

As noted earlier, if pure weight was so vital, in marginal winds just about all the lightweights would beat all the heavier sailors in one design racing, but that simply doesn't happen. If you like the feel of a lightweight board then that's a great reason to get ?ne, and sure they are easier to flick around.. But for the typical sailor (and I'm not saying you're him) the actual speed advantage would be likely to be nothing noticeable IMHO.

I've sailed in one design yachts against an America's Cup naval architect and skipper. Our boat was about 2% heavier than his. We were first, he was ninth or tenth...


Um the lightweights do beat the heavier sailors. That's why there are weight divs..

I do see myself as a typical sailor..no special ability here..

Its good to see all the different opinion. At some point I would have agreed with al the views here.. more recently though..

Chris 249
NSW, 3542 posts
25 Mar 2026 10:27PM
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Gestalt said..

Chris 249 said..


Gestalt said..




ptsf1111 said..
It doesn't work like that though. Fat = fast as they say in slalom windsurfing. Apart from early planing, you want to have more weight for speed.



As pointed out about, the small 2% overall difference in weight doesn't do much. However, it's a 30% lighter board and surely that feels like a massive difference on the water. That alone might allow a good sailor to get more out of the board or get planing earlier, not sure. In wave sailing, it's a no brainer.






I don't think it's that straight forward.. 2kg on a board means less volume, more drag etc.. depending on where it's added makes a big difference. adding 2kg to a sailor not so much because we are using leverage against the rig.

here is a test. grab a 2kg dumbell or sand bag and strap it to your board and go for a sail. Bet you notice it.

whilst I have no empirical data on this many years ago when I was course racing we used the idea that 1kg of weight was equivalent to 3kg when including drag etc. I'd love it if there are any naval architects out there that have actual data around this.





Yes, the sailor can notice extra weight, but that doesn't mean that the water can "feel" the extra weight to an extent that is really noticeable because the water doesn't give a stuff whether the weight is in the sailor or the board. To use an analogy, people can certainly feel a bicycle that weighs 2kg more, but the physics show that that a 2kg heavier bike is only about .16 km/h slower at about 35kmh. So feeling the weight doesn't mean you can feel the speed loss..

As noted earlier, if pure weight was so vital, in marginal winds just about all the lightweights would beat all the heavier sailors in one design racing, but that simply doesn't happen. If you like the feel of a lightweight board then that's a great reason to get ?ne, and sure they are easier to flick around.. But for the typical sailor (and I'm not saying you're him) the actual speed advantage would be likely to be nothing noticeable IMHO.

I've sailed in one design yachts against an America's Cup naval architect and skipper. Our boat was about 2% heavier than his. We were first, he was ninth or tenth...



Um the lightweights do beat the heavier sailors. That's why there are weight divs..

I do see myself as a typical sailor..no special ability here..

Its good to see all the different opinion. At some point I would have agreed with al the views here.. more recently though..


The point is that not many of the lightweights beat the best mediumweights even in conditions that favour the lights. Normally only 10% or so of the lightweights beat the top couple of medium weights. That shows that the difference in ability is a far, far bigger factor than the difference in weight, and therefore the difference that lighter weight gives is hard to identify among all the other factors.

Grantmac
2370 posts
26 Mar 2026 2:25AM
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Longboard one design racing isn't exactly the most accurate way of determining if dropping 30% of the weight from a waveboard significantly alters performance.

Gestalt
QLD, 14858 posts
26 Mar 2026 5:04AM
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Grantmac said..
Longboard one design racing isn't exactly the most accurate way of determining if dropping 30% of the weight from a waveboard significantly alters performance.



True and I guarantee the sailors are weighing their gear to find the lightest boards and rigs before purchasing.

it is also true that skilled sailors beat lighter sailors.

Gestalt
QLD, 14858 posts
26 Mar 2026 5:19AM
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Did another deep dive.

Both ends of the spectrum

Pro lite (11.5kg) for 5.5m 3 batten wave sail and 88lt board complete (picked lightest gear whilst matching mast) so light..
Amateur hd - (16.7kg) for 5.5m 5 batten wave sail and 88lt board (picked heaviest gear)
a windsurfer Lt board weighs 15kg.

5kg difference means loosing 5lt so you need a bigger board to compensate so the amateur would choose a 95lt board being next size up on average. Thats without even contemplating how the heavier gear would handle and feel.

honourable mentions to severne, jp, hot sails lithium and carbonart for pushing things
dishonourable mentions to duotone for not listing weights. Is this intentional to obfuscate their marketing..?

Gestalt
QLD, 14858 posts
26 Mar 2026 8:58AM
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World first tool-less windsurfing fins..

the fcs fins arrived and worked a treat. This will work in any us box / star box board. Other than not needing tools. An advantage is more room to move forward because there is no tab at the front so I can set a tighter cluster. These fins are more upright than the stock fins so a little more pivot.

the downside is that most surfboard fins for midlength boards have a blunt leading edge when compared to windsurfing fins. Whilst there are surfboard fins that have better foils they are not fcs2 base. FCS also have a set of fins that would work in the front boxes but I didn't want to spend another $200.

Downside of what I'm doing is the thicker part ie slower surfboard foil, although a more upright fin should suit mushy onshore days and being slower on the wave helps. Will keep looking for more suitable fcs2 foils although I'm thinking of buying damaged fins to harvest the tool less part for my other fins.

goya I think should take a serious look at this with their mfc connection.. FCS bought MFC so they have patent access. MFC could start producing tool less windsurfing fins including windsurfing front fins to suit the fcs2 boxes and get an edge over the market. Saves weight in the board and NO MORE tools...I'm certain surfers would serious look at windsurfing fins.

P.s 17 yo son thought this a game changer. The kids are onboard too..








Chris 249
NSW, 3542 posts
26 Mar 2026 3:48PM
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Gestalt said..










Grantmac said..
Longboard one design racing isn't exactly the most accurate way of determining if dropping 30% of the weight from a waveboard significantly alters performance.













True and I guarantee the sailors are weighing their gear to find the lightest boards and rigs before purchasing.

it is also true that skilled sailors beat lighter sailors.





You can't guarantee something that is not true.

I've been national champ in windsurfers and in the world's most popular racing yacht.class and state champ and top 10 nationally in Lasers, so I've been able to win at national and state level in some of the world's most popular classes without weighing the gear. Incidentally eons ago I was top 20 in the slalom worlds. The team manager said I had the fastest board in a straight line, but I still got kicked by Anders, Bjorn etc because their huge skill advantage was vastly more important than my alleged board speed advantage.

I know a bunch of other people who are similar in that they don't weigh the gear or stress about gear weight, but still do well. I mentioned earlier winning a major yacht nationals against two America's Cup skippers in a boat 25kg or so overweight. We had a two-time world champ skipper and an America's Cup winner on board, and while the rules said we had to weigh the boats, they didn't give a stuff about the extra weight ours had. To give another example, a while back I loaned two one design boards to former World Cup sailors, one of whom was also a former Olympian, for the nationals. Neither of them had a chance to select the boards and I didn't know the weights myself. One of those boards then won the nationals. So the reality is that 'the sailors' are NOT weighing their gear as a rule, or even normally.

ptsf1111
WA, 549 posts
26 Mar 2026 2:40PM
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The best sailors do not only have the best skills, but they are also the best at selecting gear. In PWA slalom racing, the top guys test multiple identical boards until they have found the best board out of them and use that one for the formal races. The others are used for training only. So they might not put them on a scale, but the weight is inherently part of it. Production boards would have very similar weights, but there's still slight variations in shape that makes the one board faster than the other. That, combined with sailing skills, tuning, and tactics, makes a winner.

Muppet
WA, 124 posts
26 Mar 2026 3:23PM
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ptsf1111 said..
the top guys test multiple identical boards until they have found the best board out of them and use that one for the formal races.



Do you know what identical means?

ptsf1111
WA, 549 posts
26 Mar 2026 3:37PM
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Haha, are we nitpicking now? Supposedly identical. Better?

Muppet
WA, 124 posts
26 Mar 2026 5:25PM
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ptsf1111 said..
Haha, are we nitpicking now? Supposedly identical. Better?


No mate, it still doesn't make sense. The words 'similar' and 'identical' are different words with different meanings (that is to say, the words are not identical, get it?). Why would anyone test identical boards? It would be completely pointless. Once again you're literally talking nonsense and it's complete bs that a pro would test multiple identical boards when there is nothing to compare. Words are defined by their actual meanings, not what you decide they mean. If English is your second language, I will certainly cut you some slack, but if not, I suggest you invest in a dictionary and consider what you are actually saying...





Gestalt
QLD, 14858 posts
26 Mar 2026 7:50PM
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Here is an example of identical. old mate rocks up to the warehouse and weighs a couple of identical boards and picks the lightest. Not being there doesn't make it not happen. And it has nothing to do with America cup boats.

here is another example.. another mate weighs his board and realises it's heavier than identical boards. He then starts weighing boards and discovers that identical boards are not all the same weight. Realising his has split and taken on water he asks the distributor to weigh what's in stock and send him the lightest.

chris chill mate.

Gestalt
QLD, 14858 posts
26 Mar 2026 8:21PM
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Now for something not identical

pro lite

north extension - 0.4kg
north base - 0.25
Hot sails ultra 100% mast - 1.5kg
X boom ultra - 1.8kg
Hot sails lithium 5.5m - 2.35kg
tw custom 86lt - 4kg

Total 10.3 kg
honourable mentions
carbon art 87lt board - 5.2kg
jp magic wave - 5.7kg
severne s1 pro on severne gear - 6.79 kg


HD setup

Simmer sx4 extension - 0.63kg
Chinook base - 0.54kg
Ezzy legacy mast 60% - 2.12kg
Chinook alu boom - 2.85kg
Ezzy zeta 5.5m sail - 3.56kg
Witchcraft wave 86lt hd - 7.0kg

Total 16.7kg

honourable mentions
simmer 90lt 6.5kg

ptsf1111
WA, 549 posts
26 Mar 2026 7:10PM
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Muppet said..


ptsf1111 said..
Haha, are we nitpicking now? Supposedly identical. Better?




No mate, it still doesn't make sense. The words 'similar' and 'identical' are different words with different meanings (that is to say, the words are not identical, get it?). Why would anyone test identical boards? It would be completely pointless. Once again you're literally talking nonsense and it's complete bs that a pro would test multiple identical boards when there is nothing to compare. Words are defined by their actual meanings, not what you decide they mean. If English is your second language, I will certainly cut you some slack, but if not, I suggest you invest in a dictionary and consider what you are actually saying...








Right. If you truly didn't understand what I was trying to say, then fair feedback, otherwise it's not nice.

English might not be my first language, but it doesn't matter. I chose "identical" on purpose, as the boards are meant to be identical. Yet they aren't.

I asked Gemini and it suggests the use of "nominally identical" or "theoretical identical" instead.

Hope you can approve of that language instead.

Mark _australia
WA, 23581 posts
26 Mar 2026 8:15PM
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Sorry Muppet they do. They get a bunch a factory made boards and test them. They choose one as it feels faster or lighter or whatever to use in races. Ptsf meant identical as they get a few of the same model

Paducah
2809 posts
26 Mar 2026 11:41PM
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Mark _australia said..
Sorry Muppet they do. They get a bunch a factory made boards and test them. They choose one as it feels faster or lighter or whatever to use in races. Ptsf meant identical as they get a few of the same model


Same even in one design classes. A friend was in charge of the IMCO gear at a long ago Olympics and competitors had to be limited on how many boards and sails they could try (or measure) before selection. IQFoilers definitely are choosy about foils, sails, etc.

Gestalt
QLD, 14858 posts
28 Mar 2026 7:33AM
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Pushing this thread forward..

imagine. t1100 carbon in windsurfing kit...

Matt UK
290 posts
28 Mar 2026 5:48AM
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Mark _australia said..
Sorry Muppet they do. They get a bunch a factory made boards and test them. They choose one as it feels faster or lighter or whatever to use in races. Ptsf meant identical as they get a few of the same model


Hey Mark, same goes with masts, they get one that works great and keep it. Masts can be up to 7% plus or minus the designers specified guidelines, so if a mast flexes say 50cm in the mid section, it can be around 3.5cm difference but it will still go through as a certain curve. I have had 2 masts the same, 430cm 90% carbon masts, and one was - 22cm and one was +35cm from the designers specs. This can be because of various factors but it will effect the sail shape for sure.

Gestalt
QLD, 14858 posts
28 Mar 2026 10:23PM
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Turns out t1100 is old news. it's t1200 these days, a 100 better.

jdfoils
445 posts
29 Mar 2026 12:23AM
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Masts can vary quite a bit. I used to go to the warehouse with sawhorses, a weight, and a measuring tape to select mine...

Chris 249
NSW, 3542 posts
Sunday , 29 Mar 2026 9:22AM
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ptsf1111 said..
The best sailors do not only have the best skills, but they are also the best at selecting gear. In PWA slalom racing, the top guys test multiple identical boards until they have found the best board out of them and use that one for the formal races. The others are used for training only. So they might not put them on a scale, but the weight is inherently part of it. Production boards would have very similar weights, but there's still slight variations in shape that makes the one board faster than the other. That, combined with sailing skills, tuning, and tactics, makes a winner.


But Olympic gold medallists, PWA world champs and America's Cup winners do NOT always do that, and they still win. Some of them, like Laser sailors, have found to their cost that worrying about getting fast gear is a very bad thing. There's a great interview with Shirley Robertson chatting to Olympic Laser gold medallist Tom Slingsby. He was stressed about the boat he got at the Beijing Olympics and that, along with suffering psychologically from trying to lose body weight, led to him going from being unbackable favourite to finishing about 24th.

After that, Tom was coached by Michael Blackburn, Olympic bronze medallist and an extremely analytical sailor. Michael and Tom went out and bought "slow" boats - ie ones with the "wrong" mast rake or weight, etc - and learned how to get them to perform just as well as a "fast" boat. That meant that when Tom went into the next Games, he knew that all had to do was measure the supplied boat, apply the technique changes that they had worked out when training with the "slow" boats, and they could get them all going effectively as fast as each other. Tom won that Olympics going away and went on to win the America's Cup.

Similarly, two-time Olympian Krystal Weir didn't stress if a sail was blown away and crumpled because any loss of shape was half of what she would lose in a bad tack. And I know for a fact, because I was one of the crew, that (as noted above) one of the Australia II crew and a multiple world champ did NOT select the best gear when we won a nationals against multiple world champs. Back in the day I was Bjorn's training partner before the worlds, and he did NOT do what you say.

Some of the best sailors do what you say, but others simply do not.

ptsf1111
WA, 549 posts
Sunday , 29 Mar 2026 9:00AM
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Yeah, I didn't say that everyone does this. At least in the PWA slalom, the top guys do. There's no Bjorns or Robbys at the moment, I'm sure they could win on every board.

Grantmac
2370 posts
Sunday , 29 Mar 2026 12:32PM
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What does one design racing have to do with wavesailing?

Chris 249
NSW, 3542 posts
Sunday , 29 Mar 2026 7:30PM
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Gestalt said..
Here is an example of identical. old mate rocks up to the warehouse and weighs a couple of identical boards and picks the lightest. Not being there doesn't make it not happen. And it has nothing to do with America cup boats.

here is another example.. another mate weighs his board and realises it's heavier than identical boards. He then starts weighing boards and discovers that identical boards are not all the same weight. Realising his has split and taken on water he asks the distributor to weigh what's in stock and send him the lightest.

chris chill mate.



I'm chilling, but I'm also getting told about how top sailors do stuff, when many of them don't do anything of the sort. I never said that lighter gear may not be minutely quicker. I don't know about old mate from where you are, but the point is that in the biggest classes the average old mate who does nationals is making so many sailing errors that gear weight is not a measurable part of the reason they are average and not on the podium. For average old mate to worry much about gear weight is the sort of thinking that condemns them to being average.

I've done my time carbon vacuum bagging and using Nomex etc and I'm not saying that light gear is bad. It's just that for the average sailor, the gear is not the issue that's holding them back. Worrying about gear is (IMHO) more of a problem for the typical old mate than the gear itself is.

The other thing is that if we start over-stating the need for the lightest and best gear, we are sending out a message that the sport is too much about spending dollars and too little about sailing well and having fun. That's arguably a bad thing for windsurfing.


Chris 249
NSW, 3542 posts
Sunday , 29 Mar 2026 7:56PM
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Grantmac said..
What does one design racing have to do with wavesailing?




It's a very good testing ground to see if weight makes a significant difference. Hand the average wave sailor a 2kg lighter board and put them in a competition against the world wave champion on a "normal" weight board, then see the difference in their performance. I'll bet that no one could see any difference - the champ will still wipe the average sailor just as the OD champ with 2k extra bolted to the board will win against the average sailor.

As a parallel, I race bicycles against the state champ in my age group. In time trial bikes the physics are easy to work out. I haven't been serious for years so these days I'm slow, and I can crunch the numbers to see that out of the 20% (IIRC) speed difference between us, only about 2% is down to the fact that he has vastly better gear, and 18% of the difference is down to him being a better cyclist. So should I worry about the spending $20,000 to get rid of the 2% I'm losing through having old gear, or should I get my arse into gear, do the hard work and try to reduce the 18% I'm losing because I'm not as fit, strong and hardened as he is? It's a no brainer from my angle, and the champion cyclists I know would all tell me it's not about the bike and that I should ride up grades, not buy upgrades, if I want to get back to being quicker.

IF someone wants to buy lightweight gear because they like the feel of it, or because they like nice stuff, or they love the technology that's fine. Good on them and I hope they have fun with it. But the thing is that the subjective enjoyment they get from that doesn't mean that it's making an objective significant difference. If someone wants to plane earlier, unless they are on the PWA they should probably spend the time they spend thinking about gear working on their fitness, weight or technique.

Gestalt
QLD, 14858 posts
Sunday , 29 Mar 2026 8:11PM
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I can't think of much in the slalom scene other than carbon fins and recessed decks.

But foils,, massive technology jump there. Sail cloth has big technology jumps too..

bradsblah
12 posts
Tuesday , 31 Mar 2026 10:42PM
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Grantmac said..
What does one design racing have to do with wavesailing?


They are surprisingly similar disciplines. I only wavesail as far as recreational windsporting goes. But I do our local weekly one design fleet race and travel to our regattas around California and the gorge and do quite well. Wavesailing is all about dealing with gusty, holey wind, quick tacks and pivot gybes. Awkward balance situations. All that transfers directly into one design racing.

And I agree with Chris on the weight stuff. I've got regular weight wave boards and extra heavy wave boards and I don't notice any difference on the water.

And my LT is third hand kit, dinged up and has some water in it. I stlll won Nats on it. Doesn't seem to matter too much.

Gestalt
QLD, 14858 posts
Wednesday , 1 Apr 2026 11:25AM
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bradsblah said..



Grantmac said..
What does one design racing have to do with wavesailing?





They are surprisingly similar disciplines. I only wavesail as far as recreational windsporting goes. But I do our local weekly one design fleet race and travel to our regattas around California and the gorge and do quite well. Wavesailing is all about dealing with gusty, holey wind, quick tacks and pivot gybes. Awkward balance situations. All that transfers directly into one design racing.

And I agree with Chris on the weight stuff. I've got regular weight wave boards and extra heavy wave boards and I don't notice any difference on the water.

And my LT is third hand kit, dinged up and has some water in it. I stlll won Nats on it. Doesn't seem to matter too much.




Why was the lt designed to be lighter if weight makes no difference. actually the original prototype was even lighter but they were concerned it would be too fragile so made it heavier.

there is no wimdsurfing manufacturers trying to build heavy boards. it's just not a thing.. they are all trying to build lighter and lighter gear. Why?

Mark _australia
WA, 23581 posts
Wednesday , 1 Apr 2026 10:18AM
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Because they want it to last a season or two.

Gestalt
QLD, 14858 posts
Wednesday , 1 Apr 2026 1:15PM
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Mark _australia said..
Because they want it to last a season or two.






I guess we can agree to disagree. I don't think there is some nefarious move at play.. you really think Severne are purposefully trying to build gear that doesn't't last.. I kinda know that's not true. Simmer, same deal.

as I said earlier in the thread the problem is cobra can't currently do better because the workmanship is not on the same level as a custom builder. Plus, cobra and others are working to time frames for profit. custom builders don't have that constraint.

This thread is about how to push technology forward.. sitting back saying it's not possible is not how I'd approach things.

how heavy are your 86lt wave boards.



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"Pushing technology forward" started by Gestalt