A couple other things that may help you aside from what has already been mentioned. First, I always under rotate landing as you would on a trampoline, landing flat. I slide out and land on my ass. Over rotate it and try to land on your toes and cut away from the boat (for me this was a bit of a brain fart from the tramp). Two, I pick a spot directly across the water (a tree or the shoreline or a hot chick on the beach, whatever) to make sure I do a clean front summersault in the air without spinning.
TS Backroll is the exact same thing but you're doing a backward summersault instead.
TS, I’d try the crow first if you can land switch comfortably.