[EdZ]

I like this! Could you expand on this here thought?

Sure thing Bucket..... we are at the root of Homer's work on this in some ways:

G.O.L.F.

Geometrically Oriented Linear Force

The idea being we are trying to sustain the line of compression, a line of force, that is properly aligned to the result we want. To do that, we are using our hands, specifically the pressure points, to send that force via the club, so it stands to reason that if we want to direct the force, we want to direct our hands.

Where do we want to direct them? On plane - down plane.

Now obviously the rest of the body, the rest of the 'machine', has a relationship to the hands, and to be truly efficient, all the other parts have to align in their respective relationships - but that said -

It is the line of compression that matters, and to that goal, ultimately it is the hands that we can control - so if the rest of the body is all over the place, we can still sustain the line of compression if the hands know where to go - on plane, down plane.

The rest of the body may do all kinds of things to support, or fight, or compensate, but those pressure points are the 'end of the chain'.

If the hands try to stay related to the body, rather than the plane line, you're in trouble unless you have perfect body/pivot motions.