here's the thing: threes are easy. If you can do a 3 in tennis shoes on the ground, you can do them on skis. But, the decision to spin 360 degrees in the air, which at some point you will obviously be facing uphill, is not easy. From a logical standpoint, it seems rather stupid. The hardest part about spinning is just comitting. Don't think. Don't look at the jump any longer than you have to. Visualize the spin and go.