[O.B.Left]

Whip you got skills and you are actually studying the book. Glad to have you around.

We can talk about this stuff here if you want to , its your thread I suppose.

Homer talked at length about Hooked face in his GSEM classes. Agreed whats written in the book needs to be expanded upon and it is central to his impact geometry theories. So is hand manipulation vs true swinging, grip rotation vs plane line rotation, horizontal vs vertical vs angled. Its a big topic that requires diagrams.

Re Hinge Action: The hinge actions effect on the ball is limited to the impact interval yes, but the left hands relationship to the associated basic plane extends beyond impact in both directions. You dont swivel right up to the moment of contact although it can feel like that.

Imagine the swivel this way: In the Downswing your left hand lies flat to the plane , during hinge action your left hand maintains a perpendicular relationship to one of the three associated basic planes. Between these two precision alignments of the left hand (club face) is the action of the swivel. It swivels the left hand off the inclined plane to its prescribed alignment vis a vis the chosen associated basic plane. Its a bridge if you will , between alignments , between the left wrists lying flat to plane and whatever hinge action is desired. Both fore and aft of impact, in Release Swivel and Finish Swivel. The Swivels length is dependent upon Release Point and Hinge Action...... it can be early and long or late and fast etc etc. It feels like a Roll and it is a Roll but to vArying degrees.