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Post by Richie3Jack on Aug 23, 2011 9:37:05 GMT -5
I know with a spine tool, when you find the spine you can put it at 9 o'clock or 3 o'clock position. IIRC, 9 o'clock makes it kick a little less and 3 o'clock makes it kick more.
Any rules of thumb as to what way to go here?
3JACK
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Post by cloran on Aug 23, 2011 12:14:04 GMT -5
I always put it at 9 a to limit dispersion. Talanonti sets his MOI'd shafts at 12, and I'm curious as to how this aligns the spine... or is the spine not exactly what he is finding? I'll send him an email...
But, back on topic. For me, I spine align shafts ONLY to limit dispersion as much as possible and I find placing the spins in a 9 o'clock orientation does that the best.
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Post by Richie3Jack on Aug 23, 2011 12:29:03 GMT -5
I was told that Pure-ing is different from spine alignment and that with Pure-ing they put it at 12 o'clock because of the differences. Wherease with spine, it's either 9 or 3 o'clock. Given that he co-founded SST Pure, it makes sense that he puts it at 12 o'clock.
3JACK
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Post by cloran on Aug 23, 2011 12:55:52 GMT -5
That's what I'm curious about. Would you align a shaft differently if it were pured v spine aligned? What if pure-ing results in a spine placement of 2 o'clock? Wouldn't that be inefficient?
The two formats must be more similar than dissimilar.
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Post by cloran on Aug 23, 2011 13:01:48 GMT -5
I found this to be very interesting... and will no longer look into buying a spine finder:
"Without going into to much detail, the primary spine of a shaft is essentially the heaviest side. You can find it by taking a raw shaft, plugging both ends with corks and throwing it in a filled bath tub. The side that ends up down is the spine side. Most people will find that installing that heavy side towards the target will give the most consistent performance (that's why PURing directions are opposite for lefty vs. righty golfers, the side to the target is opposite)."
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Post by Richie3Jack on Aug 23, 2011 13:08:56 GMT -5
Hmmm.
I'm going to try that.
What I will do is use the spine finder and then mark it with permanent marker. Then put it in my bath tub and see what that reads.
From what little I understand about bouyancy, it makes sense. But, I've already ordered the spine finder. Could return it though.
Ought to be interesting.
3JACK
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Post by cloran on Aug 23, 2011 15:05:15 GMT -5
I've had a spine marked professionally... then just rolled the shaft across my kitchen table. It would settle on the spine approximately 80% of the time.
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Post by Richie3Jack on Aug 23, 2011 15:42:44 GMT -5
I was thinking though...I would imagine that if you put the shaft in a tub full of water, even with both sides corked, wouldn't it sink?
3JACK
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Post by rohlio on Aug 23, 2011 16:01:29 GMT -5
I was thinking though...I would imagine that if you put the shaft in a tub full of water, even with both sides corked, wouldn't it sink? 3JACK No it won't, in fact my whole driver floats...you want to know how I know that
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Post by woodbury on Aug 23, 2011 16:16:01 GMT -5
A shaft, that is 41 inches long, has a volume of about 124 cc's. (Add tip diameter and butt diameter, divide by 2, for a rough estimate of average diameter). 124 cc's of water weights ... 124 grams. Seems as though it would float, barely
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Post by pavaveda on Aug 23, 2011 17:51:36 GMT -5
Would probably be best if it floats just below the surface so no surface tension affects the test. Since we're gettin' picky.
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Post by cloran on Aug 24, 2011 7:28:51 GMT -5
This video was made to show the cpm variations between shafts (same OEM, same flex printed on shaft, same length, etc)... my question is:
Wouldn't the alignment of the spine within the analyzer have an effect on the cpms? If so, by how much?
hmmmm.
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Post by cloran on Aug 24, 2011 7:36:37 GMT -5
I found this lil' tidbit:
"if there is a significant spine, you really want to measure the frequency in the direction that the shaft will be doing the most bending. That's the heel-toe plane, not the face (target) plane. That's what I do if I have to use a shaft with a spine. I usually orient the shaft with the stiffest plane in the heel-toe direction, then build to the target frequency in that plane."
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Post by Richie3Jack on Aug 24, 2011 7:51:14 GMT -5
This video was made to show the cpm variations between shafts (same OEM, same flex printed on shaft, same length, etc)... my question is: Wouldn't the alignment of the spine within the analyzer have an effect on the cpms? If so, by how much? hmmmm. It might, but I think only by a few cpms. Steel is pretty stable these days. My Srixon Pro 100's were measured at FuZion Golf and they have TT DG S300's. They were a smidge stiffer than 'stiff', but everything lined up perfectly. 3JACK
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Post by Richie3Jack on Aug 25, 2011 19:01:41 GMT -5
Alright, I got the spine tool. This one is sort of a pain in the ass because you have to have it in the vise at a 30* angle. I measured the Mitsubishi 3-wood shaft that I used to have in the Titleist 910 F-d. It generally made the read right, but it was NOT like you see in the videos where you can give the club a good twist and it will always return. This one you have to toy around with it a bit, but eventually I found the spine.
The titliest shafts have that 'Diamana' circle on two opposite sides of the shaft. The side that had the Diamana and gives the weight data (82 grams) was the side of the spine.
I hope to go to Mike Hogan tomorrow. For those who don't know, he's a very good clubmaker out of Merritt Island, FL (www.golfdoctorisin.com) and is actually related to....Ben Hogan.
I haven't seen him in awhile, but I'm going to go down there and see if he can measure the frequency of my Wishon driver with the Talamonti shaft and I'll have him measure the Mitsubishi shaft just in case I want to install it into a different head.
I'm thinking that since the Mitsubishi is graphite and is not a raw shaft, that may have played a role in having to fiddle around to find the spine. Not sure when I get the KBS shafts in...I'm thinking Monday (hoping).
Anyway, I tried the bath tub trick.....didn't work.
It floats just fine, but it never floated on one particular side.
So far though, I would recommend if you are going to get a spine finder...make sure it does not have to go on an angle on the vise.
3JACK
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