About Hondas hull, I can't qoute the source, read it several years ago, Honda spent somewhere about 6 years on hull design for the Aquatrax. I could be wrong, but look what Honda did with the CR450F. Took them how long to market a high performance 4 stroke dirtbike and it is a stompin' good time. Aquatrax is avail in non turbo trim also.
The Yami 1100 pulls like crazy too. Even with my large behind weighing it down. And it sure is purdy.