I stopped the video at the time you left the lip of the kicker, and your upper body is leaning over your ski tips and your left shoulder is over your right ski...
^dude... a bio is when your head spins down hill and your skis are uphill through the spin...to do a bio you need to throw your body to the right, while spinning to the left, my arms go down for the grab right away, and my hips go back