Pivot center

[Yoda]

Yoda

In your series of photos, I can see a phenomenon that I have seem many times previously. Before release, the clubshaft is bent backwards and after release the clubshaft is bent forward.

The question becomes - how does one interpret this phenomenon.

Jeff,

As I've already explained twice in this thread, the Clubshaft is responding to the Sweetspot's Centrifugal Line of Pull. It is NOT creating it (as you continue to insist). In fact, this 'bass-ackwards' thinking is your fundamental error.

The Sweetspot is orbiting, and in so doing, is creating a Centrifugal Force (Clubhead Inertia resisting a change in its direction). The Clubshaft is supplying the Centripetal Force that enables that orbit.

In performing its function, the Clubshaft is stressed at the Top (Lag Loading / 7-19). This is the true Clubhead Lag, i.e., the Sweetspot seeking to maintain its in-line condition with the Pressure Point Pressure and thereby creating Shaft Stress. It is no less than the Secret of Golf (6-C-2-0/A). Ideally, this Stress is never 'Released'.

[And while I'm here: This Shaft Stress is not Accumulator Lag, i.e., the out-of-line condition of the Left Arm and Clubshaft -- that you misidentified as Clubhead Lag by reference to Photo #1 in your post #118 -- which is Released. ]

Where was I? Oh yes . . .

Centrifugal Force (Swinging) or Muscular Thrust (Hitting) is driving the Clubhead.

Not the Clubshaft.

I am not saying that Clubshaft properties -- materials, flex, etc. -- are not important. They are. But, not in the ways so often promoted. And . . .

Not in the way described by you.



BTW, you state that you see in my photos a "phenomenon that [you] have seen many times previously. Before release, the clubshaft is bent backwards and after release the clubshaft is bent forward." Question: How do you explain "The Snake" (Photo #4 in my post #127 above), where "after release", the Shaft simultaneously is bent both backwards and forwards?



Please include the photo in your reply, and for the visually-challenged among us, please trace the Shaft with a yellow line. Thanks!