OK now for some feedback I used a set of MFC quads, unfortunately the swell never came in that we were hoping for I have tried the board in head high cross onshore beach break Scarbs with overpowered 4.7m to underpowered dogging around 5.3m
Initially I had the fins set back a bit in the boxes and left my screw driver at home the first time out. hmm board went upwind better than before with speed, turns a bit looser, board felt a bit looser/skateier underfoot, less slappy on the water and it felt slower but that was only a feeling as head to head against a mates board it was ? a bit faster than in twin mode, probably as it feels more in control Im not sure. the changes in the performance were not that great I was a bit disappointed.
Overall I wasn't that impressed until I borrowed a screw driver (thanks Paul from Second Wind) and moved all the fins forward a bit, which loosened up the turns heaps. As a quad there was a slight increase in speed going down the wave face the front part of the board seems to sit lower/flatter in the water, I felt the board went more vertical when charging the lip. When underpowered the top turn has a nice tight little grippy hook turn, when overpowered I found the top turn hard to pull off it didn't want to bank over and turn a tight exit arc(a similar feeling I've felt in some of the production quads). I could however push really hard with my backfoot and slide the whole tail and fins sideways(like a rear of a car skidding) back off pressure when the board was pointing in the direction I wanted to go and the fins would instantly grip and off I'd go (it was a fun move) doing that on the top turn reminded me of sliding out a skateboard I found that I could do that slide more easily as a quad than in twin mode and that it would re grip easier than the twin.
Overall it enhanced some aspects of the boards twin fin performance and yet hindered some of the others depending on the conditions. I just have to work out which conditions to use it as a quad and which to use it as a twin.
I'll definitely make another quad/twin soon

just a bit wider to increase my TOW
**So watch the buy and sell section soon for a bargain priced 85l RIDER twin/quad**




(woop! woop! blatent red thumbable pimp!)