James, it is as you note, it is is taught first and foremost in Europe, while in North America there is an effort on small mountains to focus more on turn initiations relaxing/flexing the old downhill leg and then transitioning. A good and cogent explanation given to me bright skier was that in steep terrain, inexperienced folks shy away from the precipice, so to get the skier to lean downhill, it is easier to ask them to do an "up and forward" move initially i.e. push off of the new downhill leg/old uphill leg. It works especially in steep terrain, and many Europeans do not teach anything else.
His dusty, you posted a lot there so I'll respond for now to stuff addressed to me. In terms of the Klaus video there is the issue of context. Where does he go from there? Lot's of people just see the vid you posted and think it's the final form. Would you not agree that Klaus does not ski like that? Neither does any Austrian Wcup racer or high level skier. There are plenty of people who do that and never get beyond it.
So it's a drill. What's the next one? Every drill can have misinterpretations and unintended effects if not understood or explained. What's being done here is that in order to show high angles on the skis he's way inside with tons of counter. So if you're just looking at the ski angles ok, but what about that body position? Lots of people will take that and go ski in that position. Klaus doesn't ski in that position though and neither do his high level friends. That's the issue.
As to popularity, is that much of an argument with what's popular on tv and youtube these days?
What would be interesting and helpful is your experience working with Klaus and how that relates or doesn't to the video.
Inside ski has been a focus for quite some time. This isn't any big new thing. You say Bob never mentioned it, but his most simple phrase for skiing is "Left tip left to turn left, right tip right to turn right." That is of course the inside ski. While that's rotary based it also covers tipping to little toe since "tip" is a noun for ski tip and also verb. One could just use the verb aspect of tip in that phrase if rotary is off the table.
So that is in the encyclopedia and in his discussion of basic turns to advanced. (Many diagrams on epic). Along with that is the release of the turn - flattening the old outside/ new inside ski. That's the most important. Even in wedge turns he wants to see that ski flattened before/as one is changing direction. Not over powering the old outside/new inside ski with the new outside ski. That's why it's "left tip left to go left" not "push on the right ski to go left" like I was taught and many still are. No pushing on "magic buttons" under the right big toe to turn left. The problem is that does work and is somewhat more natural since it involves applying force now to make something happen.
The other way is releasing the ski holding you in the turn (the outside) , starting the new turn, and allowing forces to build up on the new outside ski as the turn develops. That's much less natural. We don't want to give up the grip on the mountain and "fall" for a second. It seems safer and more direct to push on that outside and over power the inside. It's not actually and leads to dead end habits, difficulty with soft snow, esp powder, and lot's more work.
So, release, release, release. This is why one works with side slips, falling leaf, and Bob's favorite, pivot slips.
Bob's big on doing the same things for lower level turns but at a reduced level due to lower skill level. So similar movements in wedge turn as advanced parallel.
So the Dharon Rhalves pull the outside ski back. I've heard the sale thing relayed from someone who did a Nastar clonc with Aj Kitt. The reason was to increase pressure on the outside ski in the turn. Ok, you need to do that go for it.
Rob Butlers use of it: I haven't looked like it closely but I suspect there's a whole lot of other stuff going on. Pulling back the outside ski increases the force on it. Now if you don't want to turn, you'll just stand there with the uphill coot pulled back some. But you do want to turn, so as you pull the uphill/outside back you relax the downhill and you head in the direction of the turn. So you've released by body going downhill and also relaxing, maybe slightly pushing ahead, the downhill ski.
Somewhat similar to a side slip. If you release the edges and stand in the middle, will the tips go down? The short and technical answer is no. However, it is extremely easy with just a slight body movement to do so. If your intent is to release and point the tips down the body accomplishes this by an almost indistinuishable twist or slight turn of the feet perhaps.
It takes so little that I used to think they did, and we've had leople swear they did then go out and film it and you can see the body movement to initiate tips down hill.
The "up and forward" issue. Well it's clear you didn't directly discuss this with Bob because he's written probably a hundred pages on this with photos and videos on epic. Maybe cgeib has a list of the manor threads. Sure the steep stuff explanation kind of makes sense but It's used and taught on near flat stuff. One has to convince yourself to commit and go downhill on steep terrain. Everyone has their pitch at which point you need to apply self talk. If fear over rides, no amount of "up and forward" talk is going to help because one is desperate to stay back uphill.
I haven't looked at the Austrian vid yet.
So next time you're out on a flat trail. Like say that long return flat trail at Aspen Highlands way lookers right on map. That type of trail without the dropoff. So standing evenly on two feet moving downhill, take say your right foot and tip it towards the little toe. Some people like to think of turning their foot's arch to the sky. Whatever works. So, what happens? If nothing, it is likely you're resisting or tilting to the left while you tip the right foot to lte. Try it again but this time think " I'mgoing to make a slight right turn by just tipping my right foot to the little toe edge" then do it.
You'll find you can initiate a turn by a very slight movement. Can you do the same by tipping a foot to the big toe side? What's the difference? Well play around with it.
You can also initiate a spin with tipping one foot to little toe. It's similar, but the intent is different so the actions are a bit different. Same flat terrain, going downhill. This time slightly pick up one foot , turn it outside a little, and tip it to little toe. The intent here is just to cause some drag. Think of maybe ing the surface. You're not putting weight on it other than to cause some drag. This will start you spinning in that direction. So then put the ski down flat. Stand upright, resist leaning uphill or towards the tips as you're about 180deg. Think vertical centered like a top. Once you get good at it hou can start a spin with very small movement. The key is you'reetting the drag on the ski turn you.
Some like to say the inside foot is the guide ski and the outside foot is the ride ski. The outside still does most of the work, the inside is the brains of the operation.