you could always be under rotating becuase you keep looking over your sholder for the landing. I know everyone always says to keep looking at the landing as you spin the last 180, but when you get to like 450 look between your legs at the snow or down beside your leg......
because looking right over your shoulder might cause you to stall your rotation.
going off of a huge table and landing perpendicular to the landing can do some serious damage if you land wrong like whiplash, broken wrist, broken hip, separated sholder, hitting your head, etc..
Darry Hunt
[T.V.] 'It's 10 O'clock. Do You know where Your Kids Are?'
[Homer] 'I TOLD YOU YESTERDAY, NO!!!!!'