I have a soul 10m a TT 139x39 and I weigh 72k plus equipment. I sail perfectly upwind at 10kn, at 12 I start jumping, the big jumps from 16 and I have reached 28kn dominating the team, but carefully. With the 7m soul I start at 14, jumps at 16 high jumps at 20 and I still haven't found the maximum w...