Most likely 120 Liters would have been too much in 30 Knts. A 105 L board (not much smaller) would better suit your weight in such conditions. Adversely 4.7 mē may be a bit small. Mistral can be quite irregular with lulls at 20 Knts. In this case the 5.3 may be an option. However you may have other problems with too big a sail. Basically the board gets stuck upwind when you sheet in, and you fall off. This happens also when there is too much outhaul. Your sail is completely flat/instable and you don't start. Additionaly the fin shall be consistent with sail size (but I guess it was more than big enough). Ciao
Last edited by Farlo; 6th January 2010 at 05:42 PM.