Lag Pressure, can it be sustained?
 

Id say No, not past the point where the club is not accelerating anyways. But the attempt or the intention to sustain it as long as you can is a good one. A very good one assuming you want to hit the ball with an accelerating clubhead as opposed to a decelerating one.


There's a lot of different definitions of lag out there but I'd like to confine this conversation to Homer's Lag, Lag Pressure. Lag PRESSURE as sensed in the Hands, the #3 pp (rotated or not).

Here's my line of thinking please tell me if you think Ive got Homer wrong. It aint hard to do.

Lag Pressure is a product of Acceleration. The rate of acceleration to be precise. To maintain a constant amount of Lag Pressure you need to maintain a constant rate of acceleration. (which is one difficult task) Any slowing in the rate , though you may still be accelerating will see a corresponding drop off in the amount of Lag Pressure in terms of psi. (Lag pressure as defined is not measurable in terms of degrees or inches).

O.K? Stick with me here. Homer in the Law Flail 2-K noted how when the (swingle) clubhead passes the (handle) hands that the clubhead is subject to what he termed "Angular Deceleration". To me implying that Lag Pressure is fully diminished by this point.

Further more I believe the Endless Belt analogy is a model to show the mechanical advantage of the small pulley wheel for a given hand speed only. I dont believe Homer was suggesting there was an advantage to having a constant hand speed!!! In fact a constant hand speed would to my mind suggest a lag pressure of zero. This may be contrary to some well intentioned A.I.s teachings.......no ill will intended. I just think they got Homer slightly wrong. Either they did or I did......

Any thoughts on this guys? Its time to get Homers definitions straight however painful it may be to the memory of some pioneers. There's some guys dressed up in lab coats , calling themselves "scientists" who are looking for some misinterpretations to rebut. Most of them are of their own making but lets clear up our own.

Homer Kelley's 3 Imperatives changed my ideas on teaching and playing. They work for me and my students. The "scientists" are trying to show us that maintaining the angles is not needed. No kidding. That's exactly why Lynn Blake, years ago, told us "the secret to golf is not a position, it's a pressure.". Good luck to those who teach others to throw that away.

Kevin

Why would you say that you can't sustain lag pressure?

You can but only for so long. I edited my post above for clarity. I think you can sustain lag pressure , should attempt to sustain lag pressure as long as is possible. Sustain a constant amount of lag pressure via a steady rate of acceleration. But once the clubheads rate of acceleration declines even though you may be still accelerating Lag Pressure is fading away and once the club passes the hands , settles into angular deceleration Lag Pressure is all gone. Similar to how you dont feel pushed back into an airplanes seat when the plane reaches full speed. No acceleration no lag pressure. You want to accelerate gradually , at a steady rate , not start off at a rate you cant maintain (over acceleration the menace that stalks all lag and drag). It'll feel heavy.

The intention to sustain it past impact , past low point all the way to Both Arms Straight is a good one though.....

Here's something else to consider. Can you have too much lag? If talking Lag Pressure as a product of acceleration : Yes. You dont want to hit a three foot put with 40 yards worth of Lag Pressure do you.

See 2-M-2 POWER REGULATION. Clubhead Lag Pressure Point pressure (6-C) is the Power Regulator. It meters out Power by sensing Clubhead Acceleration Rate and Direction.

Im no scientist though.......could be wrong again.

Don't forget Mass in your Lag Pressure equation.

That makes sense thanks Mike. So for a constant
hand speed the Lag Pressure sensed would be a product of clubhead mass only ( as the contribution from acceleration would be zeroed).

Is that what you mean?

No

I'm saying the equation that LP=A isn't correct. LP=MA is a much better equation. Essentially the greater the force the greater the lag pressure. Let's say you go out in front of your house in the street and accelerate (push) a feather 1mph, then to 2mph and then to 5 mph - not much lag pressure. Now, accelerate a car in neutral by pushing on the fender 1mph, 2mph, 5 mph - probably alot of lag pressure there. Acceleration was the same - the difference was the mass you were accelerating.

One example of that concept in a different perspective somewhere in the book 10-19? (don't have a book anymore), he comments for short shots with little to no hand motion - to add mass via extensor action for better lag pressure.

Therefore, if you had constant handspeed but were increasing angular mass via arm and/or lever assembly extension - you could still have lag pressure. Finally and in addition to that thought - we are talking about acceleration of the clubshaft at the grip end, where the hands attach. We're not talking about ONLY the acceleration of the hands through space, that has the ability to create lag pressure. Some of the wrist motions/muscles can add force and therefore lag pressure on top of whatever hand acceleration one might have or not have.

Thrust anyone? The accelerated mass will cause a force of equal magnitude but opposite direction. [Clubhead Inertia] sensed and directed by the #3 PP.

Bold by Daryl

The Downstroke Acceleration Sequence (Power Package) produces a "constant Rate of Acceleration" of the Primary Lever although the Pivot reaches its maximum speed early in the Downstroke.

Hey did you guys ever have your date night?

Yes. Mike is a great date. He's severely addicted to TGM. :)