From what I've seen, he's big on the plane. He wants a double shift - from the elbow to the turned shoulder back to the elbow plane. I'm sure what he's teaching will fix most slicers but if he gets a good player I'd have to guess that they will start fighting the hooks.
Basically, he either a) doesn't know you can have a zero shift; or b) doesn't like a zero shift. Everything in his book is regarding a double shift. His ball-flight "laws" are also completely backwards from what I remember. Pretty much the exact opposite of what really happens. Says clubhead path determines starting direction and clubface dictates curvature. Thus an out-to-in path with an open face means you'll hit a pull-slice...when we all know what will really happen.
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