The components of the Primary Lever should rotate around the Hinge together.

Of course. So what? You can still flip. Or throw away lag to early. Or - theoretically - not release at all.

No you can't when the Rotation is guided by the Right Elbow. If you don't allow the Right Elbow to guide the Rotation, then all of the problems you mention will almost always occur.

This is territory that my words cannot explain. A video from me, or TGM Teacher demonstration. The Paddlewheel motion of the right forearm rotating about an Axis perpendicular to one of the Basic Planes. So, the Left Wrist can "Roll" however and whenever you want: but their are "Rules" to follow.

Rule #1: The Roll begins at the Pulley.
Rule #2: The larger the Pulley, the Slower the Roll.

Zone 3- hands/wrist hinge motion only can be expressed in RPM
Zone 2- arm/shoulder motion in an arc motion can be expressed in RPM
Zone 1- body/pivot moves in a rotatory fashion can be expressed in RPM.
Trevino had an interesting illustration in his book expressing these zones as gears, the torso being the bigger slower gear and the hands being the faster smaller gear and how they have to rotate together like a crankshaft.

Now a hands controlled start up will work but takes "strong" hands to drive the pivot.
A pivot controlled takeaway will also work but the hands must be passive enough to allow the slower pivot to initiate the takeaway.

IMO that's what I see when I look at E.Els vs K.Perry start up at address.
There are 3 zones of moving parts in different orbits with 3 different RPMs. Who is the conductor of this orchastra?
Hint there is no wrong answer.

To get back on topic:

Now you're throwing in a number of components and efforts required to maintain rhythm. These efforts would be far less critical if the clubhead and the hands had the same RPM.

There are three Rhythms that relate to the three Hinges. Each procedure is unique. The only similarity is that the Flat Left Wrist and Clubface rotate simultaneously around the Hinge. Each Hinge Action - Rhythm - rotates the Clubface about a different Plane. Vertical, Horizontal and Angled. Certainly you can accomplish that with the Left Wrist alone. But Swingers and Hitters have "Inherent" Hinge Action because of the way the Right Forearm participates, which is caused in part by Wrist Action. Parts within Parts. Motions within Motions.

I think it's clear to me that RPM is rhythm and the MPH is speed.
The pivot is the only true rotation part of the machine.
The arc and the hinge mechanism travel more or less in a straight line. The pivot regulates the rhythm because it's the true center and of it's rotatory nature.
I suppose one can listen/play a musical piece with same rhythm but different tempo.But it can not longer be a musical piece if there is tempo without rhythm.
No rhythm. No golf swing?

Each hinge action is unique. There are many ways to maintain a flat left wrist through impact. Each procedure will make a difference as to how CF will impose forces on your hands that can potentially ruin your rhythm. That's only in the down stroke. The upstroke has it's challenges to. It is no coincidence that newbeginners vary between no release and a flip. It is because they haven't learned to monitor and enforce the rhythm. ENFORCE.

I don't see anything wrong in what you state here, Daryl. And besides, you know parts of this much better than I do. I am not sure if you understand them better than me whenever I take a close look, but you certainly know them better.

But I think you're missing the mark. You insist that rhythm means similar RPM for club and arm. If that were a fact, maintaining rhythm would simply be a matter of correct sequencing in the pivot. And then you proceed by explaining a number of alignments that is needed to maintain rhythm. None of them would be critical if your definition of rhythm was correct.

If the clubhead and the hands had the same RPM the need to monitor the hands would be reduced significantly. You might as well monitor the clubhead then. The left elbow and the left hand travels on the same RPM. That's the reason there's no need to monitor the left elbow.

The golf stroke would be a lot simpler than it is if the club and the arms had the same RPM throughout. It would be like the relationship between your left elbow and your left hand. But the golf stroke would be a lot shorter too, and golf would be a lot less exiting if it were that simple. But it isn't so why not set the record straight? Why not put some content into Homer's differentiation between same RPM and same basic RPM?

Daryl and Bernt
Why dont both of you post yourself dancing like Fred Astaire and we will decide who's got the best rhythm.:happy3:

People and Places
 

LAS VEGAS, NV, May 2, 2007 . . .

Daryl and wife Bobbie dressed for dinner at the Belagio http://www.bellagio.com/. . .

Trust me . . .

The crowd parts.

Somewhere in there . . .

I wiggled through!

:mrgreen: