This is a real simple trick. Imagine, when you are cutting away from the boat to set up for a heelside jump. This is the same position you want to be in when you are edging back into the wake on your toeside edge. You have you back straight with your chest up, and your legs are nice and straight. This is going to be the key to getting your big air. When you ride all the way through the wake, you tuck your chin to your chest, holding on with two hands til about midway through the trick. This keeps you rotating instead of stalling out. After you reach the midway let go with your rear hand. Make sure that the hand you are stil holding to the rope with is kept close to your body. This also helps your rotation. Once you can see the water you should know where the rope belongs. Either close to your body or let it out a little to slow your rotation. I hope this is lucid enough to follow.
Johns Island, SC