Hands Forward As Felix shows above, at higher speeds it's paramount to keep the hands forward so your weight is centered over the skis.
Eyes Looking Ahead Felix's eyes are looking two turns ahead, scanning the snow and preparing to adapt to subtle terrain changes.
Weight Mostly On Downhill Ski Although Felix's uphill ski is weighted slightly to keep it tracking properly, the majority of pressure is on the downhill ski, which allows it to carve cleanly through the snow.
Skis Parallel Felix's parallel skis create a stable platform; if necessary he can balance on both of them instead of one. In Figure B1, Felix keeps the skis parallel throughout the turn. In Figure B2, his skis scissor excessively; they resemble a "V" as the the right (uphill) ski drifts up the hill. This can throw off Felix's balance. It also creates unnecessary drag, scrubs speed and increases the risk of falling.
Wide Stance, Lower Upper Body Felix's skis are comfortably apart, and he has also lowered his center of gravity for better balance. At slower speeds, a tall, erect stance with feet close together works OK (C2). But for faster skiing, note how I widen my stance, increase my angulation and lower my upper body to improve aerodynamics (C1).
Torso Aimed Toward Fall Line While Felix's skis in Figure A and mine in Figure D1 are turning left, our upper bodies point toward the fall line, promoting proper hip angulation. In Figure D2, I grossly over-rotate my upper body, which makes it difficult to hold an edge or absorb terrain.