I'm using on my Futura 111 the stockfin from my s-type 115 from last year (drake freeswift 38cm). This year you get the same fin with the futura but with a thick layer of paint on it and this is totally useless in my eyes.
With my weight (+95kg) I'm totally addict to that fin for powered up 7.4mē conditions. Yesterday evening I had another session with 17-20 knots and not one big spinout (http://www.gps-speedsurfing.com/gps....8&uid=162&cnt=
So I think that the fin-shape is very good (compared to the old drake fins from the s-type 2006 for example), but that the 2008-version with the paintlayer is maybe not the best thing starboard has done...