Over-acceleration

[Jim Kobylinski]

Archie...i'll simplify this from real world testing cuz lord knows i can't explain it from a physics sense.

100mph with a flat left wrist and bent right wrist with maximum "mash" = 150mph ball speed
105mph with a bending left wrist and a flattening right wrist with less "mas" = 141mph ball speed

What am i talking about here? SMASH FACTOR.

The speed may increase, but the "mash" into the ball doesn't.

 

[wanole]

Joe..What I am saing is flipping would decrease the mass there is because you're not hitting the ball with the down and out. I would think you would have to lose some sort of mass with a flip.

I could be full of it, but it just seems logical.

 

[Archie Swivel]

You must.
How else could you lose momentum when you don't lose velocity?
My son (below signature pic) agrees.

quote:Originally posted by wanole

Joe..What I am saing is flipping would decrease the mass there is because you're not hitting the ball with the down and out. I would think you would have to lose some sort of mass with a flip.

I could be full of it, but it just seems logical.

 

[MizunoJoe]

Arch,

That strong, sturdy bent right wrist is just insuring a flat left wrist. If it bends before or during impact, it causes a slowing of the clubhead because the shaft is always seeking the in-line condition - so if the left wrist bends, the handle backs up, and then goes foreward, causing the clubhead to back up. This cushions the ball instead of resisting it, i.e., reduced compression.

 

[MizunoJoe]

jim,

Correct. That's because in the second case, the separation velocity is much less than the 1st case, and the ball gets 100% of the separation velo, but only 70% of the impact velo.

 

[Archie Swivel]

MJ,

Lets say I have a freeze ray gun. You're in the middle of a swing and just before impact I fire it at your right wrist, freezing it so that upon impact it shatters (like when the futuristic morphing robot killer in Terminator 2 shattered after being dowsed with liquid nitrogen). Because of my good aim, I left your left wrist alone, flat and undisturbed. Do you think your transfer of momentum from clubhead to ball would be lessened?

 

[MizunoJoe]

Arch,

Maybe a little. But the right hand grip pressure should be going to zero shortly after impact anyway, which is why Gregg McHatton can let go through impact.

 

[Jim Kobylinski]

Through my study of pro swings i've noticed that most swingers on tour, to some extent, have their right hand come a little off the club.

Not to the point of VJ or even Phil M where one flattens the right wrist and the other almost does. But you can definately see through impact the right hand losing the grip a bit due to the pulling force of the pivot and the inert right arm of a swinger.

 

[anakin]

I always find that you are one of the knowledgeable and more to it talking sense guy on the forum. Correct me if I am wrong, as I just want to find out for myself.

Impact is a gateway
In TGM, as long as the Primary Lever Assembly is in sync with the Secondary Lever Assembly, then we are in Sync. (Maximum Radius maintain)
Impact interval is not a position and is a motion. Therefore if we are trying to use our muscle to achieve the position, we end up ¡§QUIT¡¨ and create club head throw-away

Angular motion creates acceleration to the outer zone (endless belt effect)

Now, as long as we learn how to manipulate the force and speed of our swinging motion, we can then maintaining the rhythm PLA and SLA in Sync.

Therefore we got to be able to feel that we are swinging the club in a constant speed, this is how we can feel the clubhead lag pressure. Any early acceleration will cause an early deceleration. Swinging the club at a constant speed will be able to maintain the clubhead lag pressure through out.
If you can maintain the club head lag pressure, you can maintain your FLW. Where FLW will give you the maximum radius during the impact interval.

 

[tongzilla]

quote:Originally posted by jim_0068

Through my study of pro swings i've noticed that most swingers on tour, to some extent, have their right hand come a little off the club.

Not to the point of VJ or even Phil M where one flattens the right wrist and the other almost does. But you can definately see through impact the right hand losing the grip a bit due to the pulling force of the pivot and the inert right arm of a swinger.

Absolutely agree with you Jim.

Lesson: never try to tighten your grip in the middle of the swing! Sometimes you actually need to feel as if you are letting go in order to achieve constant pressure. Courage...

 

[Robbohank]

Good stuff here, especially if you're one who's struggled with over-acceleration. Some of my best ball-striking this year has been when my primary swing thought was to have "tensionless hands" moving at a constant speed through impact. I could really sense the endless belt effect and there simply wasn't any "adding" going on. Unfortunately I often slip back into the trap of consciously trying to accelerate the hands into and through impact, usually by trying to "pull harder with the left". (I'm a swinger).

My question is when do we stop "thinking" about acceleration? The hands and club obviously are being accelerated during the transition and start-down. Is it simply a matter of allowing the pivot to do all the work? Does a proper pivot ensure a certain max hand speed is achieved at some point prior to the release interval without any conscious thought on the part of the golfer? Our job would then be to simply recognize that and maintain that rhythm. I imagine that educated hands play into this somehow, I'm just not sure how.

 

[Jim Kobylinski]

quote:Originally posted by tongzilla

quote:Originally posted by jim_0068

Through my study of pro swings i've noticed that most swingers on tour, to some extent, have their right hand come a little off the club.

Not to the point of VJ or even Phil M where one flattens the right wrist and the other almost does. But you can definately see through impact the right hand losing the grip a bit due to the pulling force of the pivot and the inert right arm of a swinger.

Absolutely agree with you Jim.

Lesson: never try to tighten your grip in the middle of the swing! Sometimes you actually need to feel as if you are letting go in order to achieve constant pressure. Courage...

Funny that you bring that up...i've also noticed that no matter what you do during the backstroke, the downstroke grip pressure will be higher due to the pressure on your pressure points.

One more reason why you should have a solid "firm" grip and don't create a death grip.