I would have liked to see him demo the drill with a full swing.........
Is this drill not essentially the Babe Ruth Drill?
My understanding is they are very similar. The difference I notice is the orientation of the feet. In the Babe Ruth drill, the feet are turned more in the direction of the catcher (sort of...). This drill doesn't require that same orientation. This is also a drill I use quite regularly. When used properly I do feel it helps hitters get a better understanding of the separation from the back hip to the hands, and helps them learn how to control their move out. As with any other drill, this one can also be done incorrectly.