No problems with the 2009 Drake fins on my 122. No spin outs at all and they seem fast. I can use surprisingly small sizes which add to the speed. 44 cm seems as the biggest I would go. I didn't try a Deboichet or other £$£$ brand though. On the other hand my Drake fin on my Aero 127 really sucks. It's like sailing with weed on the fin, but that's another case..