which center fin for a 10'34" windsup with a 7m2 sail?
I am enjoying a 10'34" windsup Whooper board, using it for stand-up. I'd like to use it also for windsurf with an old sail I have (7 m2 area). Although it has a middle fin (what is good to go upwind), I believe I should replace its center fin. Which fin should I use (currently, it has a 17 cm center fin).