If we are Hitting? Swinging? Snap vs sweep release?
Here is an interesting article by the good folks at Harrison. Can we add anything to it in terms of stressing the aft of the shaft vs the top of the shaft? What do we make of shaft lead vis vis our quest for Lag in a TGM sense.
2-E… Zero Deceleration is what would give maximum ball speed for any and all approach speeds. Speed (Centrifugal Pull) and Prestress (Acceleration) stiffen the Clubshaft for consistent (minimum to maximum) resistance to Impact Deceleration. Treat that “heavy” feel of “Clubhead recover” after Impact as though it were all Impact, even though the ball is actually long gone.
6-C-2-C IMPACT CUSHION The prestressed Clubshaft will resist the added weight of the ball during Impact, instead of the cushioning the impact with an unstressed Clubshaft. See 2-M-1.
Clubhead Lag Pressure normally remains constant regardless of the Velocity it has produced. And both #1 and #3 Pressure Points are the product of Accumulator #1.
6-C-2-D LAG LOSS The very small degree of Clubhead Lag permitted by Clubshaft Flex, makes this procedure especially susceptible to Clubhead Throwaway. And the stiffer the Clubshaft the less the margin.
Over-Acceleration is the menace that stalks all Lag and Drag. Here it allows the Hands to reach maximum speed before reaching Impact and so dissipates the Lag. So the length of the Stroke and the amount of Thrust should be adjusted and balanced to produce a “High Thrust-Low Speed” Impact – “heavy” rather than “quick.” Daintiness is dangerous.
Harrison if I read them correctly would suggest that this photo below shows a forward kicking shaft (shaft "lead") as the rate of initial acceleration in Startdown has passed its peak. A second peak in Release, they say, would see the shaft return to its "lagging" condition (bending backwards instead of forwards). Wrist snapping in their terms. Im thinking Throwout action in our terms or Snap Release perhaps.
But they dont differentiate between bending the back or front of the shaft. A Drive Loading Hitter loading the first joint would bend the aft of the shaft along the line of the RFFW to my mind. While a Drag (edit) Loading Swinger would initially be loading the knuckle with a corresponding bend along the top of the shaft or the line of LAFW, followed by a bend along the back of the shaft or the line of the RFFW during a period of Radial acceleration as the load moves to the first joint. So the swinger has two bends but along different lines. While the Hitter may have two bends but along the same line. Is this correct?
Harrison says that good golfers may have it bending backwards or forwards depending upon their Release types. The backward bending providing more "kick" for distance. The forward bending guys needing to adjust to the associated closed clubface and manage the degree of bend for directional control. They dont mention backward bending and an associated open clubface.
What did Homer mean by "pre stressed"? Forward or backward bending? Top of aft of shaft? Im thinking aft as the right arm is always thrusting be you Hitting or Swinging.
It's kind of funny how Harrison adopts descriptions from the Shafts point of View.
TGM, an Alignment Point of View, would term the above photo "Throwaway"; being that the Clubhead is overtaking the Hands without "Rhythm".
So, TGM has either a "Lagging Clubhead" (Pre-stressed Shaft) or Throwaway. This is Throwaway in the Broader sense, that Clubhead control was lost or not 100% in your control.
Harrison Term ........ TGM Term
Leading Shaft ......... Lagging Clubhead
Lagging Shaft ......... Throwaway
Anytime the Clubhead overtakes the Shaft, the Clubhead will be decelerating. That's not the Law of the Flail, it's just common sense. So unless Harrison's Phantom Golfer Strikes the ball while the Clubhead is springing forward (Acceleration Phase), the ball will be struck with a decelerating Clubhead.
If we consider the argument that using hand muscle a split second before impact can produce good results, but that doing so is impossible to time even for the most advanced skill set, then I could hardly accept the argument that Shaft Spring can be timed and applied in a like manor.
I would argue that too much Shaft Flex during Startdown is a common problem. Maintaining the flex does not require a precise amount of acceleration, only slightly more than that which created the Flex. Over-Acceleration is the menace that stalks all Lag and Drag. Here it allows the Hands to reach maximum speed before reaching Impact and so dissipates the Lag.
So....Slow Startdown. Startdown by Pulling the Shaft with your Pivot. There are 4 Acceleration Phases. Experience them all. There's no need to Hurry the Downstroke.
It's also interesting that Harrison has observed Shaft Flex at 10 O'clock and/or 8 O'clock. This is just as we TGM'ers expect. These are Throws from the Top or Throws from Release. However, they don't assume that the 8 O'clock Flex can be changed by Aiming Point. They do sense that a Snap Release will bend the Shaft and have termed it the same but unfortunately they haven't observed a golfer like me or similar that will have the Hands at the Line of Sight to the Ball or farther at Release.
If they never ask the question "does a more flexible shaft make it easier to bring a "leading Shaft" into impact?", for which the answer is YES, then "Why do we have more photographic examples of Golfers with Shorter Irons with Shaft Lead at Impact than Long Clubs at Impact?" If they don't ask these questions it's because they have already found the answers. They just don't want Golfers to know. Their Goal is not to retrain Golf Professionals how to Swing a Shaft, but rather to accommodate them and sell more Shafts. And you don't sell Shafts by telling a Pro that he's been Over-accelerating all of these years while attempting to hit the ball farther. You sell more shafts by getting them to believe that the "secret is in the Shaft" and not "How it's applied". LOL
There is a Large group of Golf experts that believe that shaft "Spring back to straight" and/or "Spring forward of Straight" contributes to greater Clubhead speed. Shaft "Loading and Unloading". There are many who believe that for a few inches while the Clubhead has passed the Shaft that Clubhead speed has increased greater than before the Clubhead passed the Shaft. I think that the Argument is not germane to our study of the Golf Swing. While they offer each other gratuitous handshakes and back-patting while mutually admiring their discovery and knowledge, they're secretly writing down that any golfer needs to have their swing speed and hand speed specifically matched to a specific frequency of shaft for them to take advantage of "Spring Forward" Impact. Well, "What what happens if I want to swing Slower or Faster or Softer or Harder?"
These are the same experts that can tell if your shaft is too stiff or too flexible. If you hit High Draws, too Flexible. Soft Fades, too Stiff.
I wonder if any of Yodasluke's students have achieved their 300 Yard Drives by changing Shaft Flex or Timing the Kickback?
Linear Mode
