spine aligning is a futile pursuit.....

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Phil Rosenbaum

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Matt, always a pleasure to hear from you. If I remember correctly it was the grafalloy blue with nanotechnology. Nice catch. I had not thought of that reasoning. Can you expand on why the nano would compromise the shaft?
 
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savydan

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A quick calc shows that at 90 miles/hr clubhead speed, the 20 milisecond figure corresponds to 32 inches away from impact.

Interesting how coming into impact from the 20 mS figure, the head is moving to a less toe-down position.

Could it be that this low point of the curve (about 20 mS) is the point of highest clubhead speed, and when it starts to slow the head starts moving toe-up.

BTW, what are the units of measurement of the black figures?
 
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rprevost

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I had grafalloy blue snap on me last autumn. I had had it a while, and thought it was just shaft fatigue. I replaced it with another graffaloy blue. Was that a mistake?
 
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matt kluck

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Phil,
Did the shaft break in the grip about 4 inches from the butt, 15-17 inches from the butt or at the tip of the shaft?
Let me know.
MK
Phil Rosenbaum said:
Matt, always a pleasure to hear from you. If I remember correctly it was the grafalloy blue with nanotechnology. Nice catch. I had not thought of that reasoning. Can you expand on why the nano would compromise the shaft?
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rprevost

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matt kluck said:
Phil,
Did the shaft break in the grip about 4 inches from the butt, 15-17 inches from the butt or at the tip of the shaft?
Let me know.
MK
Click to expand...

I know that this is a private conversation, but if you can shed some light on my shaft breaking I would appreciate it. Mine broke at the tip, right where the shaft entered the hosel.
 
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savydan

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dbl said:
I would assume you'd try at least four positions (probably 6-8) and measure the results, including the effect on the ball flight and golfer's evaluation.
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Yeah...I thought that there would be a universal location such as always put the most stable axis on the vertical (toe-up/toe-down) axis or something like that.....
 
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Phil Rosenbaum

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rprevost said:
I know that this is a private conversation, but if you can shed some light on my shaft breaking I would appreciate it. Mine broke at the tip, right where the shaft entered the hosel.
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Not a private conversation at all. Matt can probably provide much greater detail as to why the shafts might break at different spots. But in my case it broke close to the grip and I believe it to be a combo or shaft production properties and the loading characterisctics that I put into the shaft in my downswing.
 
Frans@France

Frans@France

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Michael Finney said:
the club lags and leads and droops and "toe ups" in 3 dimensions during the swing.....no amount of club building know how can give you more shaft stability with respect to the shaft's spine because of this continued bending and rebounding....

Dan Stone, titleist vice president of r&d, confirmed this yesterday during a webcast......
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Why do you feel he could speak freely? He can not say the opposite as then he would be questioned why they (titleist) don't place the shafts correctly.

Also if you follow his statement then as a consequence measuring (butt) shafts stiffness using a Freq. analyzer is out of the window as well. This because some shafts will have spines that are more then 10cpm apart. Most golfers however will be able to feel those 10 cpm difference. :p
 
teacherfitter

teacherfitter

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rprevost said:
I know that this is a private conversation, but if you can shed some light on my shaft breaking I would appreciate it. Mine broke at the tip, right where the shaft entered the hosel.
Click to expand...

A break at that point was more than likely a result of an off center hit either in the toe or the heel. This was confirmed by a ball cannon test by a leading shaft mfg.
 
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