if this would be done on skis i think it would have been somthing like a lincolnloop - flat 900 kind of rotation.
Because the first flip he does is a backflip and then he grabs and get a shitloads of spin that way. just like people grabbing mute gets the spin in flat 9-10-12 rotations.
Haldor is sick, and the trick is called "LOBSTER"flip named after his own snowboard brand he started with his brother before the X-Games!