Originally Posted by BigE
The chattering comes from an overpressure.
Usually, it is when trying to hold onto the edge for "too long", which varies from ski to ski and pitch to pitch. One would be holding "too long" if the bulk of the turning effort occurs at the bottom of the turn. Don't be late!
The fix is to get turning pressure on to the skis earlier in the arc. If you're commonly unweighted and floating downhill without edge engagement until the fall-line, you've waited too long. The pressure must come sooner to start deflecting the body sooner. Once the body is being deflected earlier, the peak pressure developed later in the turn is decreased, limiting chatter. This is not so easy on steeper sections.
A goal is to acheive a "comma" shaped turn, so you are straightening the turn below the gate, not continuing to tighten it, where gravity adds dramatically to the pressure you must manage.
Thanks, BigE, that makes sense.
So, in steeper hardpack sections on slalom skis, the problem could come from any of the following (any resemblance to actual skiing of SfDean is really darned unfortunate)
1. Not being forward enough at turn initiation. The whole turn gets delayed from insufficient early forward commitment, and the skier tries to compensate by hanging onto the turn longer. (Coach to SfDean, only partly in jest: "I think we should try putting tacks in the heel of your boots...")
2. Fear (or, er, let's just say interesting line choice) -based trying to hang onto the turn too long to go more across the hill (skiing the slow line fast) to reduce vertical (top to bottom) speed.
3. Failure to manage forces properly later in the turn. Instead of releasing (or at least relaxing the old outside leg somewhat) in the final phase of the turn, skier, thinking "Must...Stick...Turn...On...Ice..." just continues to resist forces to the maximum extent at the end of the turn. (SfDean not having yet located "feel for snow in different conditions" in somewhat smallish bag of tricks.*)
*You'd think, as a compensating benefit, given its small size, that I could easily find in that little bag of tricks what I need at a specific time. Alas, not exactly. Counter, as it turns out, is one of the few tools that for me actually came with an easy to grab handle. But that's another thread...