Maybe we can get Coach Lisle to comment on this.
What is/are the goals of this drill?
[video=youtube_share;jDZeQt3STes]http://youtu.be/jDZeQt3STes[/video]
Oh, I like that. I get the girls set up the way I teach. They look good through 75% of the swing. They almost get to contact and they stand straight up. Frustrating.
I don't know but it looks like the drill would work on having the rear leg pulling the rear hip/pelvis into drive by rear foot eversion as opposed to spinning. However, having said that, I don't think the demo girl is achieving as much drive as might be desired.