Pierre wrote:John I would beg to differ with you on you're example. You took a static exercise and made it even more static by standing in a doorway. When sliding on skis, we have a dynamic situation with little or no friction in the fore and aft plane. Do the same exercise while moving on skis and (due to action/reaction) the hips will move towards the outside of the turn flatening the skis and moving the CM to the rear. The result is tip disengagement and skidding rather than edge angle increase.
You could be right. I can see that. Interestingly, I was paraphrasing what was taught to a friend recently. BB on Epic uses his two sheets of paper vs one sheet of paper example to show that on one sheet what you said would be true, but on two sheets you can move them wherever you want. Sounds like it breaks physics, but you can try it then explain it.
http://forums.epicski.com/showpost.php? ... stcount=75Given the two sheets of paper example working emperically, then you can see that you can rotate the legs into the turn. Doing so will increase edge angles. At least this is what my friend was shown and taught. MilesB also chimed in (SI's most basic movement thread on Epic) and recognized this works but warned that it's dangerous on the knees. His phrase was a little goes a long way.
So if direct leg steering flattens the skis than why was my friend taught as a primary means of tightening turns? He was taught and felt it increasing edge angles.
On the other hand, if direct leg steering does increase edge angles, is it the best approah to acheiveing higher edge angles. What are the pros and cons.
I don't think that active leg steering movements are all that easy to control and require precise eye foot coordination. I think active leg steering is really cool but, in my opinon, is really and upper level skill reserved for black level and above.
If we lighten our inside ski, tip it towards the little toe edge and shift our CM forward so that pressure moves towards the ball of our foot, powerful rotary forces will build along the ski without transmitting that rotary force up through the body. This is passive rotary and I do not think we have to talk about it. Passive rotary is far easier to control than active leg steering.
Right on. You can generate all the rotary you need this way. As Eski points out in his All Mountain book, this phantom move and resulting rotation works even in hop turns in a narrow chute. Sets you up better for landing than simple active leg steering.
Teach ligtening, tipping and CM movements to the lower levels and reserve the active leg steering for very advanced levels of skiing. We at the upper level, know that active leg steering is way cool, so cool at times that we just can't help but design systems to bring it to beginners without realizing what impact it may be having.
Like Rusty said on the bump skiing, sure people use active rotary. The question is where is it's place. Does it belong as the quiver of tools to tighten and control the shape of a carved turn as a normal thing to do?
Your opinion is that rotary is over focused on for beginners and intermediates. I would agree with that.
Rusty says rotary is used by people when they ski. I agree with that.
I think the passive rotary you describe can be used for things like bump skiing. Craig McNeil focus on this phantom move created rotary as he continues to bump ski as he gets older. He does not promote active leg steering for bump skiing in his book. Now the fastest way to do a bump run might involve active leg steering. But, that again, has little to do with what I was bringing up. Us non-racers are out to have fun and ski and keep our knees intact. Craig makes a strong case in his book for going after and using the safer passive rotary.
Rusty - Pierre says Bob's style of two paper leg turning won't increase edge angles in a turn, but rather will flatten the skis.
Sounds like you two disagree.
I'm off to ski for 6 days with no internet. Have fun with the thread.
Remember, the topic I was bringing up wasn't - no rotary at all costs, it was, what are the pros and cons of using active leg steering to increase edge angles of a carved turn. Pierre has staked out a position that to me sounds contrary to what BB and Rusty are saying, that this rotary does not increase edge angles.
Rusty, you keep defending that rotary occurs and people use it in skiing. I'm more interested on your thoughts relevant to the subject I brought up. Rusty, do you teach or believe contrary to what Pierre said that steering - active leg steering - increases edge angles in a carved turn? So far I can't tell where you stand. Pierre says this does not increase edge angles in real life, but only in a doorway.
I leave for a week of skiing and leave all with this relevant post by HH on controlling the shape of a turn without movements that result in dangerous knee angulation.
http://www.harbskisystems.com/olk1.htm
If I can turn like this after my 6 days I'll be a happy camper!
I'M GOING SKIING TOMORROW! YIPEE!! (its flat and 50 here in Indiana - so for me this is a big deal) - Have fun all!