I have the 2013 117 and find the 8.6 is as big as I need. I really don't know how much you are going to gain with a bigger sail. Down wind would probably be faster but going from point to point or upwind not sure. Maybe you might need a 48cm fin for super light wind. I use a 46cm with 8.6 and 44cm with 7.8. My weight is 83kg.
Last edited by OZI; 23rd March 2013 at 07:53 AM.