Yeah, that tuttle thing is why I waited so long to get the Futura. I have a nice set of powerbox fins for 56-65 cm winde boards, but all my tuttle fins are for 70 cm or wider boards. Kind of a pain having the exact same fin in the exact same size but with different tops. When push came to shove I liked the Futura more then the other options. But how many people will buy the other options because of the fin box?