Sam, you mention a 48 cm fin with your 8.3 which is a good combination for lightwind. Normally you should be able to plane a couple of knots earlier with 10 sqm but the difference may be hardly noticeable unless you have much more volume under your feet. Have you tried the 52 cm fin with your 8.3? This is a bit oversized but may work even better.
Last edited by Farlo; 5th October 2010 at 02:41 PM.