Been operating 14-16 foot Sea Doos since 1995, slammed them around big time, not even a stress crack in the gel coat.
Aside from that, I have always wondered if it were possible to turn one over. I am positive you cant up-end one with any normal maneuver, but always wondered if coming off a big wave sideways it might turn over. never heard of it happening.
It is one great hull design.