[Daryl]

Daryl,
Not those type of physics, human motion physics.
The club moves around the axis of the spine.
If you learn to apply the right movement patterns or Kinetic Link. The club will move around the axis of the spine.
The only geometry needed is squaring the face up at impact and knowing how to align your body square to the target.

Golf is 90% physics ( Movement patterns)

Ok, I understand your meaning.

You say Kinetic-Link, Human Motion. To TGM, Motion is Geometry, Action is Physics.

The Kinetic Link term includes Geometry and Physics. We strive to separate the Motion from the Work it performs and then Align them to create the greatest possible force and direct that force to the ball. To us, "Hip Motion" is the way the Hips move or Don't move and whether they Allow or Prevent other motions from occurring. "Hip Action" is the work that Hips perform such as Driving the Right Shoulder.

Foot Action, knee, Hip, Right Shoulder, Right Triceps, Elbow, Wrist, and Hand, ALL have Actions which have Centers and are Linked in the Kinetic Chain. We recognize their substantial contribution but realize that they aren't enough for us. We need more P-o-w-e-r. We Have Accumulators. (All Golf Swings have Accumulators; it's my sense of humor)

So, TGM states there can be a significant amount of Motion but that Motion itself doesn't contribute Force to the Ball. You need the Kinetic Linking of Actions. These Motions and Actions need to be Sequenced and Aligned in such a way to bring Maximum Force Upon the Ball through the Impact Interval.

If you say that the Kinetic Link will produce most of the Alignments necessary we would also agree. We call this "Pivot Controlled Hands". The Body, through the Kinetic Link will produce all the Force, Motion and Alignments needed to Hit the Ball. It's How most Golfers try to Swing.

We don't say that the Physics are secondary. Without Action, the Kinetic Link, you can't have Golf (or any sport). We only say that Actions need Alignments and Actions and Alignments can and should be directed. Starting with the Feet, moving up the Kinetic chain all the way to the Clubhead, the more Force the Better. The greater these Forces become as the Swing progresses, much, much better. Align and direct these Forces by controlling the Clubshaft, Clubhead and Clubface, the Best. But then you're back to TGM, and that's what we try to do. We don't simply want to hit the Ball Far, but we want to make the Ball do, what we want it to do.

Maybe Homer Kelley is the Father of "Human Motion Physics", the "Kinetic Link", "Biomechanics of Golf". Any one of those Tag Lines would be comfortable on the Cover of the little Yellow Book.

Welcome to TGM.