RE: what fin size for a 6.8m on a S type104
Thank you so very much for putting in writing what I have been told so often on the beach.
I am finding it apparently impossible to make my point to Ian and Ola that you see so clearly. Perhaps your input will allow them to get out of their expert position and see my suggestion from our shoes.
I am surprised that you found this discussion buried in the Ask Team section under a different heading, but I appreciate your support.
By the way the formula works just as well for wave fins as long as you are using a full size fin that allows you to fully power it up like an average wave sailor needs.