Originally Posted by L7
I read that quick and answered quick and think I reversed a couple of them. I also thought the questions weren't asked that well and didn't bother answering that well.
Those questions were simple, clear and designed to give you an opportunity to explain you ideas. By your own admission, you failed to do that, and now you complain that the questions were poor. You sound like those whiny kids I used to teach math to.
Originally Posted by L7
I agree with Just another that there are many variations in a GS turn with speed, pitch and offset of gates. There also will be variation of where things will occur with speed pitch and offset. I think of falline often sort of like a sailer would think of wind direction vs apparent wind direction, things change with speed as the forces become offset. What doesn't really matter is what I see in terms of some abitrary point of reference, what does matter is what the student or athlete feels while performing the maneouver.
I haven't spent a lot of time being timed in GS course on modern skis but that doesn't mean I haven't spent lots of time being timed in GS or timing others in GS courses. Good skiing is still good skiing and good teaching is still not about breaking down the minutiae to analyse to death but about relaying ideas and skills to a student to feel and learn and apply in varied situations and adaptive wa
I don't know what any of that means, except that I agree that what an athlete feels is an essential part of learning to ski. But a competent coach needs to understand what it is that the athlete should feel under controlled conditions. Correcting a faulty analysis is hardly "analyzing to death."
Since you haven't spent enough time on modern skis, you can find a clear description of modern GS turns by Rob Butler (a CSIA Level 4 instructor) here: http://skitelevision.com/carving2.html
This is how he describes a GS turn:
"...focus on carving and generating pressure in the top half of the turn, releasing in the bottom half of the turn. And that may be a slightly different rhythm for you. If you’re new to this full on carving feeling, what you might be used to doing is generating pressure in the bottom half of the turn, and really applying the pressure at the bottom. When you start carving full on 100% with the new shape skis you want to back that up in the curve. You want the maximum pressure to develop in the top half.
Once again, increase the pressure in the top half, decrease the pressure in the bottom half. Extend in the top half, flex in the bottom half. This may be a little different rhythm than you’re used to using. Increase the pressure in the beginning of the turn, decrease the pressure in the end of the turn. And what that does is, that decrease helps to bring the skis up underneath and out the other side and you can switch your edges over and you’re on to the next turn carvin’ them up."
He ignores the effect of the pitch and gravity, which reduces pressure a little at the top, and decreases pressure at the bottom, but that effect is pretty small compared to the turning forces at high speeds on moderate pitches. Otherwise, that's exactly what I've been trying to say in all these posts. Build pressure by extension in the first third of the turn, get long and strong to resist pressure in the middle of the turn, release pressure to end the turn and change edges when your skis are light at the transition. You can release pressure by inside leg extension, retraction, high C (whatever that is) or weighted release, but that is still the essential pressure development in a GS turn. I can't believe anyone who has ever run a GS course in the last 10 years, or carved high speed long radius turns, would disagree with that.
On steep pitches, the movement pattern may be similar, but the pressure distribution is dominated by gravity. At the top of the turn, you need to extend to maintain contact with the snow, but you won't generate as much pressure as you do when you are resisting gravity at the bottom if the turn. You will also feel less pressure whenever you reach full extension before a steep fall line. (And just so the Kool-Ade drinkers don't feel left out, if you can't get enough pressure at the top of the turn, you need to steer your skis into the fall line.) In this kind of turn the center of mass takes a different path than it would on a GS turn, and it might even move directly and continuously down the hill. Momentum doesn't need to be "redirected" at all. The only thing necessry to feel increased pressure is contact with the snow that causes an acceleration (or deceleration).