[Michael Finney]

Many of the golf greats may or may not moved very very 'slightly' in certain slow mo pictures, but their intentions are towards the ideal are very clear

How do you know what their intentions were?

And what is the ideal?

and it certainly can be done. Many mistake the look of turning the head even though its still stationary as defined by a fixed point in space as the head as though it was moving backwards to the right. This is because the head is not shaped like a soccer ball...

So, if the head were shaped like a soccer ball the perceived movement to the right would not exist...explain this to me.

Really all the golf stroke requires is some point on the top of the spine to stabilise the motion, yet the head is preferable because you can use your eyes to monitor if it has moved....there is no other point

Which particular point?...the base of the neck?

you can use that has anything that can match that advantage(ie point between the shoulders).