Both the UltraSonic and the iSonic 117 (not wide) were in a windsurfing magazine board test that I participated in last spring.
The iSonic was super duper fast and would be real good with your 7.0 and 7.8. You could use it with a 9.0 but I would think most of the time you would want to be on the UltraSonic in 9.0 conditions. The iSonic nose is so thin that it's a little bit tricky to tack (I'm 75 kg).
As far as control in chop I'm not sure it will be as easy as the Warp 78. It's so fast with such a wide flat nose and tail that it's kind of scary. Not necessarily uncontrollable, just scary.
Last edited by James; 3rd May 2012 at 02:59 PM.