weed finn for furtura 144
I just bought a futura 144,, so i am having some questions reg. weed finns,, my sail range is going from 7 - 9.8,, and i already have a 36 cm weed finn,, would that be enough, or will i need a bigger for my 9.8 sail?? And would the 50 cm stock finn cover the sails range or will i need a bigger?? I already have a 58 cm finn,, is that to big??