[O.B.Left]

This is a part of TGM that I don't understand at all.

It feels entirely opposite to me. More hands control the lower and closer to the body I bring my hands down to impact.

Is your left wrist level at address?

Remember if your Shoulders alone power your backswing they will take your Hands where they are going.....around and IN but only slightly UP. To get the Hands, BACKWARDS, IN and UP (on plane in other words) you need to add UP via the bending Right Elbow to the IN supplied by the Pivot. Two different vectors , two different but co-ordinated actions. As outlined in the McDonald drill that Lynn loves so much. This is Hands to Pivot.

Simplicity buffs could just say to themselves......"take your bent right hand to right shoulder high".....that'd most likely see a good pivot happen without any thought to it. Sort of like reaching for something. "Rocking the triangle", a shoulder turn with a frozen right elbow was a disaster, death move of a swing theory.