You're probly not going to take this to skiing but I started practicing back 360s and real dspins when I had a trampoline. My goal was to learn to learn to dspin like candide which is like early 360 into laid out off axis backflip. I could never do it that well but I did learn some aerials like back full back 7 back 10 etc. Its scary as fuck at first but a fun little challenge.