Hmmm, trampoline you say.
The "wave" I've sailed has no trampoline. The entire craft is rotomolded with a single rudder amidship. I just googled and found a different boat than what I've sailed. The hulls look the same, but there is no tramp on the "wave" I know (and it has about 3' of beam. You'd can't fly a hull well at all... ) Perhaps an older version. I don't know.
I may have given mis-information to the OP.