Just picked up a 31cm weedy from WSP for some flat water runs - no guesses where Pinna's are heading tomorrow.

Anyway what is the best preparation for a fin. I hate the bumps from the writing on the trailing edge - surely this must affect the fin. Also the glass like water beading finish. So i very lightly sanded it (circular motion but more in the direction the water flows with a very fine wetndry) and it feels much smoother when wet - water sticking to the fin making a boundary layer?

Is this the correct thing to do - or is a highly polished anti-water finish better, as supplied.

From memory slowboat says it depends on the accuracy of the foil, a wet and dry finish helps maintain laminar flow, so is better with a non perfect fin. But if you've got a perfect foil a mirror finish is slightly faster.