[Yoda]

Ok.....

Let's assume that we KNOW that there should be no SWAY of the 'pivot center.'

So, you can use the "through the head" center or the "base of the neck" center.

Which one has the BEST stroke pattern performance.

I will define this 'performance' in the following way:

A. Best able to create and sustain lag pressue
B. Best able to 'draw' a straight plane line
C. Best able to control hinge action

Got it?

Ok.

Here is my OPINION:

I think creating and sustaining lag pressue is easier with the base of the neck.

I think staying or getting 'on top' (or behind, if you prefer) of the sweetspot with your #3 pressure point—as in Horizontal Hinging—is easier with the base of the neck.

I think performing ANGLED hinge action or vertical hinge action to be easier with the "through the head" center.

If you bend you plane line too much to the left as a rule, you will find it easier to NOT bend it left with the "base of the neck" center.

If you bend the plane line to the right as a rule, , you will find it easier to NOT bend it right with the "through the head" center.

What do ya'll think?

Too complicated for me, Brian.

I'll just keep doing what Homer told me to do:

"Keep your Head still, pick it up with your Right Forearm and slam it as hard as you want."