JohnT, your a legend, I can't believe your riding a 7m in 15-20knts and your around 92Kgs?
I reckon your right about the rocker, mines pretty flat though, the design is a "Flyer" by Al Merrick 6'1 x 19 x 21/2, so pretty wide and thick, does the trick

I wish I could fly a 7m in 20knts. I think my main problem is, (kite) surfing in winds that are predominantly cross-on (this time of year) and the shape of kite I'm riding.
This forum has sparked a great discussion on all aspects of what makes a good wave kite and has given me insight on how to progress in how I want to kite.
The Best kahoona's looks great as do the OS's, Griffin Agro, 2011 Slingshot Bandit and S/S Rally, RPM, Wainman Smoke , they all seem like great wave kites. Which one though? 'That is the question'.
I'll demo them all if you let me, then I can tell you how they fair.
I'm sure this disscussion can go-on-and on (and so it should), lets all find the best wave kite out there

I'll post a reply when I find a 'the' one.
Cheers guys, thanks for all your input.