Don't know how much it'll help, but when I started doing grabs in tramp training it was pretty comical the first couple of tries. Came damned close to landing on my head. Maybe 5 minutes of trying to grab the soles of my feet and it started to come together. If you can get onto a trampoline for a couple of minutes it might be enough to figure out the balance.
Not crazy at all, that's what the freestyle skiers use to train. Aren't there jump schools out there that let you strap a board on your feet and use the trampoline in a harness?!?