Ughmmmm I'll buy that, it makes sense. It would be cool if we could find one system for all that gave us real readings. It would do alot so far as getting some kind of standard for us all to go buy. When I was at HotStix we had a machine that used a drill chuck type clamp. We used it for both Rifle and non Rifle shafts but we measured the shaft length differently. First we measured the total length of the club then for the non Rifle shafts we went 5" towards the club head, marked it and then placed that mark at the front of the clamp. Same with rifles but we only went 2.5" toward the club head and placed that at the front of the clamp.
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 9:07:18 AM Subject: RE: ShopTalk: 7-iron at 353 cpm - how? 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 -----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 -- Shoptalk ** Sponsored by the new Aldila Voodoo. Learn more at http://aldilavoodoo.com/
