Hey Decrep i have found the the way the Mandurah Mob can win the challenge.You need to make one of these baby's. Check it out!!!http://www.speedsailing.com/ideas_4m.htm
Holy Cow Ben, that sure is a thing!!!!!
Wait till I've got an idea what conventional speed boards are about, then maybe I'll try something like that. Think it would need somebody with strong pumping arms to get it going but.