Don't fuggin worry about it so much, stock hulls are fine for most riders, just get out there and ride.If I was to ride I would like to try some rolls & flips. I'm not the cruzn type. If I put in I want to test my limits and I don't want to do that on my rec ski. Maybe I will build a surf ski but for now I will be happy to watch and learn. Besides I'm ussualy not in any condition to ride at this event. Wink...Wink.