Look up the example of Momentum Transfer in the glossary of TGM book and you will find the connection for The Hammer Swing. I teach from the yellow book. The Hammer Swing is in it.
Law of the Flail with Maximum Trigger delay? How is your Hammer throw procedure different?
I just thought the Hammer throw reference with the power Driver with that drill just seemed out of place since a golfer does build momentum to the clubhead the same way.