Originally Posted by tdk6
But what Im really after here is how do they release the turn? They cannot extend the inside leg or flex the outside. Maybe there is something we can learn from this. Maybe the release as we have been describing it is bunk?
How does a skier release a turn when skiing on only one ski? Isn't that (essentially) the same mechanical problem?
For me, the release movement pattern I use for two-ski skiing is the same as for one-ski skiing. I don't rely on "pushing" myself out of the old turn by extending the old inside-leg (though it's an option at any given moment). I also don't rely on 'dropping' out of the old turn by relaxing/retracting the old outside-leg (again, I keep the option available). Instead of either, I rely primarily on managing the directional effect that centrifugal force is having on my body.
The built-in 3D geometry/mechanics of a typical turn provides a constantly available mechanism to migrate our CM from inside one turn, across the skis, and to the inside of a turn going the other direction. No "jettison impulse" by the skier is required to cause this crossover to begin - but such a move will be needed if a skier blocks this natural migration for too long.
Many skiers hold onto a turn until they're going nearly across the slope (for speed control). Because a natural crossover was not permitted to start sooner, an artificial mechanism is now required to quickly jettison the current lateral position (CM still uphill of the skis) and force a fast migration across the skis into a new 'safe position' planted firmly inside the new set of edges. This is why Active Weight Transfer becomes necessary
for such skiers rather than just being an option. If the skier had permitted a more natural (though managed) migration of the CM across the skis then no AWT is needed and PWT becomes a practical and efficient option.
Inside-Leg Extension [ILE] is a mechanism that accelerates the process of crossover. A continued ILE effort is required to keep it going properly if the skier was parked inside the old turn too long. Outside-leg Retraction [OLR] effectively does the same thing but from a different perspective (eg. collapsing the left leg instead of extending the right leg - both topple the CM to the left, with OLR being faster).
Counter-steering of a single ski late in the old turn will also accelerate crossover - demonstrating again that we don't need
two legs/skis to release old turns nor initiate and link new turns.
Intermediate skiers wanting to improve their skiing can do so by exploring transition methods which don't rely on pushing (or dropping) the CM out of the old turn.
Start by relaxing tension in the overall body and try to 'feel' the migration of the body from old turn, across the skis and into the new turn. Let the migration start happening earlier (like right after Apex) and thereby avoid having to drive
the migration process later with deliberate ILE or OLR patterns to 'catch up' with where the body needs to be in terms of lateral motion/balance to accomplish crossover.
Done properly, the skier can feel most of their weight remain on the old outside-foot right into the start of the new turn, then be 'pulled' by centrifugal force from that (now inside) foot onto the new outside-foot with no effort by the skier (passive). Flexing of the old outside-leg with extension of the old inside-leg takes place - but now it's *only* to accommodate the Virtual Bump rather than to try and 'pull' or 'push' the CM across the skis.