Wow--I really have to wonder who or what has been training some of the instructors here. Sorry for the rant, but how can this stuff be new to you? Where have you been? As a long-time instructor, instructor-trainer, and Examiner, and as a principle author of many of the training materials we have used and continue to use in PSIA-Rocky Mountain, it is disappointing to see how far our profession has deteriorated, and how little understanding many practicing instructors demonstrate. I cannot, of course, fault new instructors--you have start learning somewhere--but I have to wonder about ski schools that provide such little, or such poor, fundamental training before turning instructors loose on the unsuspecting public! And I implore all new (and experienced too) instructors to keep exploring, questioning, and raising your understanding of skiing movements and cause and effect. Josh, FatOldMan, PDXAmmo, BTS683, theRusty, and Ghost (and a few others)--thank you for your voices of reason and understanding. You show that good instruction is still alive and well, even if it is becoming rarer and rarer.
Actively tipping the inside ski as a focus has been officially a fundamental principle of good teaching and technique, at least in the US, since at least the advent of the Center Line (TM) Model in the mid-1980's. That's when the technical focus shifted primarily from ending the turn on an engaged downhill ski edge "platform" from which you could stem, step, hop, rebound, or otherwise "push off" and twist your tails out into a skidded turn initiation, to the more contemporary movements of releasing the edge of the downhill ski and guiding the ski tips downhill and into the turn, rather than twisting the tails out. That release movement was part of the tipping of the new inside ski that would continue through the initiation and onto the new "little toe" edge, and further continue through the shaping phase. As the inside ski and leg tips, the entire body (more specifically, the center of mass) moves into the turn, increasing inclination ("lean" into the turn, as on a bicycle), with the outside leg and ski tipping smoothly and accurately as well. Actively tipping the inside ski and leg are the premise of the concept of "parallel shafts," as opposed to "a-framed" lower legs (that are a primary sign often of insufficiently active inside leg tipping).
Prior to the official Center Line model, of course, many instructors and coaches had been exploring and experimenting with the same movements. I vividly recall that Phil and Steve Mahre were big proponents of it and it was often a big focus and drill in our Mahre Training Center at Keystone, to create accurate edging on the outside ski and accurate movement of the body into and through the turn. We've had numerous discussions here at EpicSki beginning since the website's inception well over a decade ago, about these very same things. Even as far back as the 1960's, in The Book of American Skiing (1963, J.B. Lippincott Company, pg 69), Ezra Bowen identified active inside leg tipping in an exercise or turn called the "Schrittbogen":
"Schrittbogen"--1963, The Book of American Skiing, by Ezra Bowen, J.B. Lippincott Company, pg 69
So carry on, everyone. Explore the movements, challenge your beliefs, and experiment with these and other focuses. It's good for your skiing, and it's the only way to develop understanding. Just please don't try to portray concepts like this as "new" or argue about who "invented" them!