[YodasLuke]

I'm not suggesting anything is constant in a real golfer... but yes.. the gears make the rate proportional to the arm rotation angular velocity and.. its not my theory gone bad .... its yours Yodasluke.

TGM:
10-22-A FULL SWEEP This pattern starts the Loading Action at the beginning of the Backstroke and smoothly and evenly accelerates the Club ahead of the Hands so as to arrive in position at the intended Assembly Point.

10-24-A FULL SWEEP RELEASE This procedure Triggers the Release at the Start Down by either the Hand Throw or Right Arm Throw (10-20) Non-Automatic Trigger Types. All the employed Accumulators slowly and evenly straighten and the Clubhead slowly and evenly accelerates through Impact per 2-N. See 6-C-2-B.

6-N-0 RELEASE TYPES There are two Release Types – the Automatic and the Non-Automatic – which are paired with a Release Point per 10-24.

The two Types differ in that:
1. The Automatic is triggered mechanically (10-20) – the Non-Automatic is a deliberate muscular manipulation
2. The Automatic drives the Hands at the Aiming Point (6-E-2) – the Non-Automatic drives the Hands to their Impact location (visual reference point) (3-F-5).
3. There may be a “Starting to Hit” in the Non-Automatic but not with the Automatic.
These are discussed in greater detail in Chapter 10-24.

The earlier in the Downstroke the Release occurs, the larger, longer and slower the Release Arc will be for both Clubhead and Hands. Other things being equal, this will require higher Hand Speed to produce yardages equivalent to that of the short quick arc of Maximum Delay. This involves Angular Speed which is measured by the number of degrees of an Arc through which the motion moves per second. From Release to Impact is just so many degrees of travel – at the Left Shoulder and/or at the Left Wrist. Doubling the travel time (for instance) halves the travel rate. Also see 2-P and 7-23.

(7th edition) 6-N-O, paragraph 3 - add "The smaller the Release Arc (Endless Belt Pulley - constant Hand Speed) the faster the Right Elbow must straighten and the faster there will be "Extension" (Lever Assemblies 2-P) and "Overtaking" (6-F #3 Accumulator) until the Right Arm becomes straight. All without affecting The Travel Rate of the Endless Belt."

Since the human has a limit to horse power, Maximum Delay equates to greater distances. The robot can use a Full Sweep Release, because the Hand Speed is almost unlimited. The presumption that I've made is that the robot would be made to use the same gears in the Backstroke and Loading as it would in Delivery and Release. Mechanically, it would be the simple way to design the gears.

As I was thinking about issue this I asked myself: why would they would they design clubface rotation into the swing machine since it complicates the machine (one more DOF to contend with). I made a call and the answer was because that was the way Byron Nelson (the model) did it and also because they found they needed gearing there to help manage the deceleration. (It took Battelle 3 years to develop the iron byron and initially they were breaking a lot of shafts). Then I asked myself why does iron Byron Nelson and everyone else fan the face open on the backswing? The answer to that is... TRY IT. You can't not.

In your last sentence, if you're attempting to state that you cannot keep from opening the face, you haven't seen many bad golfers.

As far as leaving the face open at impact goes (delay in closing?) bottom-line is golfer's left hand is not getting back where it was at takeaway.

Bottom-line is: Delaying the Release Point doesn't mean the Clubface remains open at Impact.

Many golfers look a lot different at impact than they do at setup... hands may be way forward... shoulders too open or too closed etc. They can compensate for different impact positions by intentionally (closing usually) the club face at set up. (You would be amazed at how "toe-in" my dad sets up with his driver but it works for him... he's ALWAY down the middle) That way when they get back to impact the face is aligned where they need it to be.

TGM:
3-F-7-A STEERING is the Number One malfunction – The Bent Left Wrist and Clubhead Throwaway. Any or all of the following faults during Impact may need to be adjusted out – holding:

1. the Clubface square to the Target Line
2. the Clubhead on Target Line
3. the Clubhead on a level or upward path
A very successful anti-steering therapy is an exaggerated “inside-out” Cut Shot per 10-5-E. Study 2-J-3, 2-N and 12-3-39. You always Swing along the Plane Line but not always along the Flight Line. So learn to dismiss the Flight Line. Depend on Clubface alignment for direction control (2-J). In fact, learn to execute all Plane Line Variations (10-5) to remove all uncertainty from your Computer (14-0).

I'm sure your father using the toe-in alignment is a good compensation for Steering. One might be able to close the Clubface at Address and employ Steering to "ALWAYS" hit it down the middle. And, I'm sure you'll tell me that distance is not a problem for him.

Get the back of your left hand back to facing the target at impact (like it was at se-up) and your club face will be fine......

TGM:
12-3-0
Section 2 – Impact Fix
3. Grip – Flying Wedges
4. Clubface Alignment
5. Approach Arc/Angle
6. Right Forearm Position
7. Clubshaft Alignments
8. Extensor Action

2-J-1 IMPACT ALIGNMENTS The geometry of all alignments stems from the Impact geometry requirements. So, the first step in preparation for a Golf Shot is the establishment of the Impact Conditions. See 7-8. The Clubface must be exactly square to the Target Line (10-5) only at the Point of Separation. So the Clubface alignment at Impact Fix must fit the selected Hinge Action (7-10, 10-10). For Horizontal Hinging, it is Slightly “Open” at Impact Fix to allow for “Closing” during Impact. The longer the shot, the more “Open.” Angle Hinging gives the Clubface a Slice producing uncentered motion so while the Clubface does “Close” during Impact, Clubface alignment is slightly “Open” for short shots but for longer shots it must be set up more and more “Closed.” The alignment for Vertical Hinging and Cut Shots are the same at Impact Fix as it is intended to be at Separation because these are “No Roll” procedures. Alternative alignment procedures are presented in 7-10. The Machine (1-L) is positioned and adjusted to the Stroke – not vice versa (8-0). Remember – the Impact Point must become “On Line” at Separation.

The Grip and Clubface Alignment are chosen at Impact Fix. I'm not sure where your "set-up" is located. If you're using an Adjusted Address, the Left Wrist and Clubface are not in their Impact Alignments.