Quick session, first went out on the Exocet SL Sport 78, then changed down to the 66. Used the select fin to compare to the black project. I can definitely say I prefer the black project. The select span out a lot more, I think I could have got a better nmi but was carefully balancing the fin, with the BP I feel more confident. Only problem is I own the select and the BP is for review....and I have to give it back :(