for a wrapped bs 360, you have keep the little handle close to your hip. pop off the wake and let off your edge just a hair at the top. once you are half way across the wakes, let go of the little handle and keep the big handle close to your body the whole time.
the reason you are getting off axis is because you are getting unwrapped right as you leave the wake.
to land either push the handle across your body away from the wakes, or pass the handle. look up when you land and absorb it with your knees.
give it a whirl and see what happens.