...then torque their bodies back the other way to swivel the next turn. Then they swivel the other way with another counter-body rotation. It looks like they're doing the Twist all the way down the hill.
When your body gets twisted and torqued, it's not in a good position to control the ski or absorb changes in the terrain. It's like a shock absorber with a kink in the middle. And once you make a pole plant way out to the side, it's really hard to keep your arm from falling behind you and dragging you back onto your heels—or worse.
The Twist is good when you're on the dance floor. But in powder, you're better off keeping your arms in front of your body. Think of how Olympic runners swing their arms: They never cross in front of the body, nor do they fall behind the torso. For skiers, it's very important not to let your hands pass behind your hips.
I'm not telling you to ski like a robot: It's important to flow, to feel the rhythm and bop to your inner music. But as far as your hands and arms go, think swing, not twist.
Age: 41 Height: 6 feet Weight: 194 pounds Home Area: Verbier, Switzerland Accomplishments: Star of 20 ski films; skied on Mount Everest; recently named Best Freeride Skier of the Century by a consortium of European sports journalists and athletes. Worst Learning Experience: "The worst is when I hear a skiing doctor (ski instructor) who's teaching 'this goes here and this goes here,' like it's a machine they're building. This is painful for me. This is not how it works. They are taking the fun out of the sport before people have even learned it.