Tried 2 720s yesterday. On my first one I ate shit hard. Got to 630 and landed sideways, caught an edge upon landing and whiplash brought my head down to ground super quick and hard (may have a very mild concussion, idk). Went back up, tried another. Got the rotation down but for some reason both my skis popped off. Will try them again Friday. I was wearing a back protector though so I think it will be easier to spin without it for sure!