Originally Posted by sharpedges
Does this represent current, year 2010 mainstream consensus thinking among the majority of high level ski instructors or is it a bit stale? ... Given the author's 4-term tenure on the D-team, one might construe his statement as official PSIA policy. Is it?
D team members have a life outside of PSIA that is not necessarily PSIA. Official PSIA "doctrine" gets published in manuals and in online form. White papers and articles in the organization magazines and newsletters (e.g. The Professional Skier) are meant to reflect current thinking without being "official doctrine". Books, magazine articles, online posts, etc. for public consumption reflect an individual author's opinions and understanding which may or may not closely map to PSIA based concepts. Since the PSIA demo team members are the main drivers for updates to the manuals, an article like this one can serve as a window into what current thinking is. Usually when this kind of thinking involves new concepts, it evolves before it makes it into print. Part of that evolution is clearing up unintended interpretations.
In this case, as others have noted, the concept is not new. Use of the words "twist" and "best" are new and thus open to unintended interpretations. Whether one believes that femur rotation can be made to happen or that femur rotation just happens (and therefore does not need to be talked about), I've found no disagreement among the teaching systems that I've been exposed to with regards to femur rotation being an essential component for high level skiing. Within that context, it's best not to interpret Rogan's use of the term "best" as meaning that steering via femur rotation is better than tipping. His correct and incorrect photos in slide 2 clearly show that he's talking about lower body rotation versus whole body rotation. In slide 3 Rogan says "Your core should be a stable pillar against which your legs twist, tip and flex in response to the terrain." Tipping has not been left out of the skiing equation here. When you consider how short the article is, this sentence takes on added importance.
For those who desire to discredit PSIA, there is plenty of evidence here to "prove" their case. For the rest of us, there is useful material here despite the fact that this is mostly old news. We get it that there are those who believe that the "correct" images and the concept of "steering" presented in the article represent bad skiing and incorrect technical understanding. That argument is what has become "stale". Please forgive me if I've taken that expression out of the intended context.