Hey Flying High,
The Ozone Zephyr is pretty damn awesome. Myself, and little John and anyone else who cared to ride the demo Zephyr's today at Pinnaroo had a great session. I think the rest of Perth had a bit of a shocker.

We have ridden on the Zephyrs quite a lot this year, much more than I would have ever imagined. It's all about time on the water rather than sitting on the beach waiting for a few more knots.
We rode right through the day up until around 6.30pm despite light winds and the lack of white caps. I ride the Zephyr from around 8 knots on a race board or the Airush Sector 60 and can be well powered in these conditions. It is possible to ride in less wind than 8 knots, but you need a little 8 knot gust to get you planing, then it's all good to sail through the light bits.
I also have no problem holding onto the Zephyr in 22 knots on a race board and probably up to about 24-25 on a twin tip. It wouldn't be my choice to rig it for 20+ knots, but if it picks up, there's no need to panic, just trim it in a bit.

It really is an awesome kite! I'm sure you could get a ride on one at Kitepower in Syd.
The Light is finishing up this year and will be replaced by a new model sometime in January.
Cheers,
KH
Here's a few pics of 8-10 knot blasting, well powered!

You may notice the absence of any decent whitecaps, you will see the odd wavelet cresting, but only small. You may also notice that this is the Indian Ocean and you are looking upwind where whitecaps show up most easily, not some offshore gimmick photo. Whitecaps start to form at 8 knots!
In these photo's I rode upwind faster than Mikey (Photog) could get upwind to the point for his vantage point in the dunes. Board is the North 2010 Race LTD and I weigh about 95 kilos with kitesurfing gear on.