I've got big big 3's dialed and I'm now pushing for a HS5. Problem is I am getting all the way round and getting the handle in my new front hand but I am landing leaning over my heals, so of course I slip out ont ass!
read the wbm w/ the tips. says to throw your chest over your board before spinning. more likely that you'll land over your board (and toes) that way. the only h/s 5 that i've landed i was following that advice. my others i tend to slide out on my heels