I took it from your post that when you measured a set of clubs at 2.5"
clamp length, they fit onto the straight line slope as predicted,
however, when you measured using the 5" clamp length, the long irons
looked fine but the short irons gave frequency measurements higher than
expected. The question then becomes, which set-up (2.5" or 5") gives
the "real" frequency on the shorter irons. IMHO, the 2.5" clamp length
is more likely to induce errors than the longer, 5" clamp length,
meaning that maybe the short irons really are getting stiffer than
desired. Your conclusion was that the 2.5" clamp length was yielding
"correct" results and the 5" clamp length was not, but there really is
no way to know for sure. With that said, if Rifles have been designed
using the 2.5" clamp length, then to get them to play as designed, one
should use a 2.5" clamp length when building sets with Rifle shafts.
Tedd
________________________________
From: owner-shopt...@mail.msen.com
[mailto:owner-shopt...@mail.msen.com] On Behalf Of Robert Devino
Sent: Thursday, December 11, 2008 10:02 AM
To: ShopTalk@mail.msen.com
Subject: Re: ShopTalk: 7-iron at 353 cpm - how?
Andre I have not used the Equalizer by pcs what does it do ?
Tedd, I am using a Mitchell set up. I don't think that's a
factor becuase a wobble would create a slope getting softer at the
shorter clubs not stiffer.
Sincerely,
Robert Devino
14252 Delano St.
Van Nuys, Ca. 91401
(818) 770-0475
________________________________
From: "Childers, Tedd A" <tedd.a.child...@pfizer.com>
To: ShopTalk@mail.msen.com
Sent: Thursday, December 11, 2008 5:18:10 AM
Subject: RE: ShopTalk: 7-iron at 353 cpm - how?
What frequency meter are you using? Could be a function of how
well the shaft is clamped at 2.5" vs. 5" clamp length. The possibility
of wobble at 2.5" clamp length goes up significantly as the shaft gets
stiffer and oscillates at a higher frequency.
Tedd
________________________________
From: owner-shopt...@mail.msen.com
[mailto:owner-shopt...@mail.msen.com] On Behalf Of Robert Devino
Sent: Wednesday, December 10, 2008 9:24 PM
To: ShopTalk@mail.msen.com
Subject: Re: ShopTalk: 7-iron at 353 cpm - how?
Ok here is what I did exactly. Not really concerned with
tip weighting because I used actual heads 3 -PW mesured at actual
lengths.
Using one shaft per frequency slope ie... Rifle chart
4.0, 4.5, 5.0, 5.5, 6.0. 6.5.
First dry fitted a 3 iron to the slope frequency for a
rifle 4.0 at 39 inches. Then tipped the shaft 9/16" as per standard
rifle tipping for each iron in the set. I first took a frequency reading
with the 2.5" clamp and then with the 5" inch clamp. The 2.5" clamp got
an almost perfect slope line. As I got to the 5.5, 6.0, 6.5, slopes the
slopes with the 2.5" clamp stayed linear. The 5" clamp slopes showed a
large curve when getting up into the lower irons and wedges. So if you
build to a linear slope with a 5" clamp with a Rifle or BTR or KB Steel
you might not be build exactly what tou think you are. Your shorter
irons might just be playing a bit softer than you think.
That's all I can tell you is in a side by side
controlled comparison I got results that showed there is a diference.
Sincerely,
Robert Devino
14252 Delano St.
Van Nuys, Ca. 91401
(818) 770-0475
________________________________
From: Harry F. Schiestel <h...@touriq.com>
To: ShopTalk@mail.msen.com
Sent: Wednesday, December 10, 2008 5:42:00 PM
Subject: ShopTalk: 7-iron at 353 cpm - how?
TFlan you are indeed correct, it's important to also
state the tip weight used. For irons and woods
I use a 205 gram drill chuck. What do you use for wood
shafts, do you still use 254 grams or do you
drop it down to 205 gram wt.?
I wonder what the difference in cpm would be using a GS
5" butt clamp going from 205 gram to 254
gram tip weight? Anyone knows, I would like to know
what the drop in cpm's would be with using an
extra 49 grams wt.
Thanks, Harry Schiestel
www.myGolfDNA.com <http://www.mygolfdna.com/>
-----Original Message-----
From: owner-shopt...@mail.msen.com
[mailto:owner-shopt...@mail.msen.com] On Behalf Of TFLAN
Sent: Wednesday, December 10, 2008 7:33 PM
To: ShopTalk@mail.msen.com
Subject: Re: ShopTalk: 7-iron at 353 cpm - how?
How come you don't mention tip weight? That is certainly
a major factor in determining freqs
regardless of clamp insertion depth.
Freq'ing with grip on only shows fewer cpm's and has
nothing to do with the flex of the shaft, It's
simply a matter of choice, as long as the choice is
consistent, IMO. I prefer no grip testing. And,
I use a 254 gram tip weight and a 5" clamp insertion.
TFlan
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