Re: ShopTalk: FUJIKURA PRO VISTA 60

In a message dated 10/2/2003 6:52:22 AM Pacific Daylight Time, [EMAIL PROTECTED] writes: * In 1991, he [Tom Wishon] and Jeff Summitt co-authored the book "Modern Guide to Shaft Fitting". If you plot their DSFI formula, it relates frequency to torque for the same subject

Re: Re: ShopTalk: FUJIKURA PRO VISTA 60

meant to type 'shaft is bowed away from target just before impact' Maybe I'll learn to proof my posts better in the next life. > > From: <[EMAIL PROTECTED]> > Date: 2003/10/03 Fri AM 11:20:29 EDT > To: <[EMAIL PROTECTED]> > Subject: Re: Re: ShopTalk: FUJIKURA PRO VISTA 60 > > While this looks

Re: Re: ShopTalk: FUJIKURA PRO VISTA 60

If the head was truly forward of the shaft prior to impact, it would indicate that the shaft had dropped below its peak speed or be decelerating with respect to the hands. The primary cause of it showing up as being ahead of the shaft is the affect of Centrifugal force pulling down on the head C. G

Re: Re: ShopTalk: FUJIKURA PRO VISTA 60

While this looks good on paper, it doesn't hold up under the high speed camera. On the 'textbook' swing, we know the shaft is bowed to the target just before impact. In this same manner, it has also 'released' from a twisting standpoint, causing the toe to lead the heel. A shaft with a higher

ShopTalk: Tough questions not golf

TWO TOUGH QUESTIONS > > > > > > > > Question 1: > > > > > > > > If you knew a woman who was pregnant, who had 8 kids already, three who > > > > were deaf, two who were blind, one mentally retarded, and she had > > > > syphilis, would you recommend that she have an abortion? > > > > > > > >

Re: ShopTalk: FUJIKURA PRO VISTA 60

Hi Dave, Some years ago I took Dynacraft's course titled something like Advanced Shaft Technology. There was quite a dicussion about their DSFI emperical fitting equation. I remember one of the terms in the equation was the fifth root of torque. The fifth root of any small number such as a ty

RE: ShopTalk: Constant frequency

Michael   The two shafts with the same frequency will have exactly the same timing between full deflection (irregardless of amount of deflection) and getting back to straight. The flex pattern or flex point might cause a difference in feel but if the shaft dose not get back to straight it will n

Re: ShopTalk: FUJIKURA PRO VISTA 60

Boy I wish someone in the golf industry would change the way we talk about the torsional stiffness of a shaft.  Your customer is right, of course, a shaft no more has 'torque' than a spring has 'force'.  Both have resistance to deformation, in the case of a shaft and its resistance to 'twisting'

Re: ShopTalk: FUJIKURA PRO VISTA 60

In a message dated 10/2/2003 6:52:22 AM Pacific Daylight Time, [EMAIL PROTECTED] writes: At 07:05 AM 10/2/03 -0400, [EMAIL PROTECTED] wrote: >...the torque in relationship to relative stiffness or frequency is a >fitting variable that is often overlooked when fitting a shaft to an >individual. I