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"...show more effective movements in the wedge christie where the wedge happens as a result of the downhill ski release and not a push of the outside ski up and around."
I was definitely pressuring my new outside ski, and intentionally pushing it out into a wedge. I now think it should have been a rotation of my new outside foot, rather than a push out. But, what does that mean, "the wedge happens as a result of the downhill ski release"?
For that exam you are forbidden to push the new outside ski's tail out. No no no.
Don't even think about the new outside ski. Do not "pressure" it. Do not "rotary" it. Do not "edge" it. Do not move your body over it to "balance" on it.
Focus instead, in isolation, on the new inside ski. That's the downhill ski when you complete the turn. Flatten it. Flatten it by allowing the leg attached to it to shorten, the ankle to roll, the body to move ever-so-slightly over that flattening ski. When you do this, the new outside ski, still consciously unchanged from a moment ago because you haven't done anything to it, will have more edge angle than your flattened new inside ski. Now you'll have one edged ski and one flat ski. The edged ski will make the turn.
But how to avoid this being a parallel turn when you the instructor know how to ski parallel?
Delay that new inside ski's desire to turn along with the new outside ski. You as an instructor know how to ski parallel, but you need to let that inside ski do nothing for a bit, delay its turning, so that you get the wedge entry. Your beginners will have this happening because they don't have enough available RAM to manage two legs/feet doing two different things. Flattening that new inside ski is all they can do. Their outside ski will take over and they'll get a turn with a wedge entry. Because it's edged and the inside ski isn't, the outside ski will dominate and make the turn happen.
To get the two skis to match at the end of the wedge christie, you need to continue to focus ONLY on the inside ski. As the wedged skis point downhill and start to go across the hill, PROGRESSIVELY rotate the inside foot/leg so that that ski SLOWLY -- S. L. O. W. L. Y. -- comes to match the outside ski. Don't do it fast. I speak from experience in exams here.
That's it. The high fail rate when instructors do the wedge christie in exams shows examiners that instructors have not yet absorbed the idea that starting turns needs to happen with a new inside ski focus, also called a release. That failure rate also points out that PSIA is ineffective in teaching its members that releasing is the first thing to do to start a turn, and that allowing pressure to accumulate under the outside foot is the rule, not "PRESSURING" or pressing on the new outside ski. Pressure, in BERP, should not be understood as a verb. PSIA National has for years chosen not to make this clear. Thus the reputation of the wedge christie as the turn that fails people at the LII exam.