I just went to a talk from Kim Hewitt who is an instructor/ER doctor.
Over the years he saw injuries from both sides of the injured.
He analyzed the injuries and saw the mechanics of the human skeleton and how they move. Isolating each joint area - ankle/foot - knee - femur/hip he identified each capable movement and identified effective skiing movement from the feet up and movement that leads to injury.
It was a rather simple presentation that summed up a complex equation. It was also a pitch for a workshop next month.
The main idea is to simplify instruction into basic movements effective to skiing with dynamic movement in balance. His home base stance was immediately dismissed because that is one position in the effective movement continuum keeping the body 'stacked' and the skis weighted effectively throughout the turn process.
Have any Bears heard of this new model?
I found this site that has many of the same type imagery in his presentation.
This appears to be a direct answer to my criticism of PSIA instruction comparing it to Scientology. First you go and spend an arm and a leg on a wee piece of the big picture. Subsequent audits and subsequent payments later you have an incrementally larger picture.
I realize skiing is a complex counterintuitive movement that has a myriad of sensations that must be analyzed while implementing movements not drilled into muscle memory. This incremental approach is the only way to absorb everything without being overwhelmed so it is not a fair comparison.