[MizunoJoe]

Brownman concludes that the Shaft can be controlled by the Left arm Wedge or the Right Forearm Flying Wedge with maybe equal results. And more important is that his Wedges are probably aligned at 90 degrees which makes it easier to switch his concentration from left to right and have good results while aligning the wedge to the swing plane.

This is true that shaft control is accomplished with the wedges. But it's crucially important that he be aware that the wedges are not moving downward at impact.