Actually there are many possibilities depending on your target. To avoid confusion I selected one, which has about 4% more lift, slightly less drag and 4% less tendency for cavitation (although I think it is not necessary for a board). You can either reduce the board area (best bz redicing chord and keeping span) by 4% or profit from the better manouverability at low speeds (e.g. at the start line). The pictures shows you the difference between the NACA 0012 at the modified section. The new section has the thickness more forward. Gives you an impression how sensitive a foil is too surface quality.
