1. I’ve seen this move done two ways. Most people who land it consistently usually make the first handle pass under their butt and the second up high. I think dividing the move into two parts helps work the handle for this high-energy spin.
2.Make sure your HS/BS 540s are strong and you can land them with an early handle pass. Then try the 720 off the double-up and cross your hips up on the landing by moving the handle away from the wake.