I have a iSonic 94 where I use a 36 SR6b, and I want a 32 or 30 also. Then I have a iSonic 122 where I have a 48 , and I want a 40. Both boards is from 2009, and they where suplied with a 30, 36 and 46 Drake Slalom Pro Fins , they are al uselles for me. I'm also looking at Tectonics Maui Fins, who a friend of me realy like. I'm a speed freak, and I realy love the 36 SR6b.