Join the GPSTC and you will be right up there if you achieved that speed on a wave sail, well done.
gpsteamchallenge.com.au/Not sure on your approach as to what you want to do, but in essence, cam sails, and dedicated kit to suit the board, and a few tips from the guys within the GPSTC and you will be surprised on the improvement. I know the
Wannabees are looking for new starters, and suits your location.