Hi Bernie and all, There is a trade off between speed and mass, the lighter head increases speed, but reduces mass. In working with arguably the Jack Nicklaus of long drive Gerry James, we worked with heads from about 179 grams to about 207 grams and got the best Ball Speed with a head at 193 grams, now his swing speed at the time was about 138 mph, I do not know how this would fall off or increase as swing speed decreases, but it seems to be consistent with your results so maybe it doesn't fall off with swing speed, maybe that's the ticket. Perhaps Dave T knows the math, I don't, I only know the results. David In a message dated 5/3/2011 7:59:40 P.M. Pacific Daylight Time, [email protected] writes:
George, I heard the UL-45 is the same shaft as the 45s from Integra with a different paint job. Maybe a slight modification with the 175 gram driver head (I have the Integra 175 and used DTG version on a customer’s club.). I like the shafts...they hit the ball very straight, though a bit high for my swing. I’m using a UL-45 R on a 10.5° BOM right now at 47½” club length and getting good results. A DTG 190 9°on an SKF PE A also produced good results with a slightly lower trajectory. I don’t like the 175 gram heads much, though. They don’t have as much “pop” for me as the DTG 190. For me, at a 47½” club length, I still think a 190-195 gram head on a low 50s gram shaft delivers the best distance. My BOM weighs 193 grams. At my age, I can’t seem to generate any more speed with the lighter head...though I haven’t really checked the speed mechanically. I have better feel for the club head position during the swing with slightly more weight (around 290-295 grams) and a slightly higher swingweight (about D5-D8). Bernie [email protected] From: _GEORGE HUSON_ (mailto:[email protected]) Sent: Tuesday, May 03, 2011 10:31 PM To: [email protected]_ (mailto:[email protected]) Subject: Re: ShopTalk: This is a mystery to me . . . Hi Bernie, Have you tried any of the 45 gram shafts from Integra? They are not very expensive & I have had very good luck with them, except 2 out of 4 of their stiffs I get are still a little soft, more high R then S. George Huson ByGeorge Custom Clubs --- On Mon, 5/2/11, Bernie Baymiller <[email protected]> wrote: From: Bernie Baymiller <[email protected]> Subject: Re: ShopTalk: This is a mystery to me . . . To: [email protected] Date: Monday, May 2, 2011, 8:08 PM Tom, Hey, I had the same reaction to a couple of SKFiber’s new SuperFly 50-gram shafts. I ordered an R and my NF4 indicated it was right on...or at least in the neighborhood. But when I put it on one of the new 175 gram driver heads, a hit felt way too soft...even with that light a head. The whole shaft vibrated like a snake on impact and distance was terrible. The same flex reading on a DTG UL-45 gives me an almost stiff feeling...the tip just snaps through the ball and shaft is solid as a rock. The only thing different about them is the profile...the SuperFly is a slender kind of “swinger” shaft and the UL-45 is a “fat-body hitter” shaft. Any similarity there? Bernie [email protected] From: _Tom Flanagan_ (http://us.mc822.mail.yahoo.com/mc/[email protected]) Sent: Monday, May 02, 2011 4:57 PM To: _shoptalk_ (http://us.mc822.mail.yahoo.com/mc/[email protected]) Subject: ShopTalk: This is a mystery to me . . . I built a set of Callaway Diablo uh, clones (?) Thursday. Shafts Aldila Velocitor, 4 - SW. I weight matched the heads 7 grams apart, as I usually do, and freq matched the shafts with heads shimmed on, at 38" 5 iron. I was looking for something like what the guy had, 288 cpm 5 iron. So, I got the shafts matched 4 cpm apart using the 288 cpm 5 I to build from up and down. These are filament would shafts so no real spine. But I placed the logos at 3:00, where the shafts seemed best on the meter. Double checked freqs, weights, lengths, and stuck them together. O'size grips lightened the SW to about C9 +/-I checked the freqs again gripped. 284 for the 5I, and so on. Perfect, another quality build by yours truly except, oops! The customer called me Saturday, mucho pissed off. "I can't hit these Flanster, they're so goddam stiff I can hardly bend them." What the hell? So I took them back today, popped the grips, pulled the shafts and re-checked. Sure enough, freqs were right on. I did the old "tried and true" stiffness test. Put the club - 8 iron cuz I hadn't pulled it apart yet, toe on the ground, push on the butt. The damn shaft hardly budged! I shimmed the 288 cpm 5I together and tried that one - hardly any give at all - at 288 cpm! So, I have a set of PC Xtra Lites. Also filament wound. I installed them at the very same readings on the freq meter - 288 cpm 5I. Did the tried and true "push down test." Ahhh, nice and soft. So, the whole set of PC Xtra Lites freq the same as the Aldilas. In all the years I've been doing this I've never seen this. I can understand a couple cpm's difference, but what amounts to X to soft R with the same freqs, etc. makes no sense to me at all. So. . . . WHY? Befuddled in the Land of Fruits and Nuts. TFlan ____________________________________ Internal Virus Database is out of date. Checked by AVG - www.avg.com Version: 9.0.894 / Virus Database: 271.1.1/3596 - Release Date: 04/25/11 02:34:00 ____________________________________ Internal Virus Database is out of date. Checked by AVG - www.avg.com Version: 9.0.894 / Virus Database: 271.1.1/3596 - Release Date: 04/25/11 02:34:00
