This presumes a particular type shaft. What we feel as Spine and NBP are not always 180*. Actually, John K has proved that spines are planes and always exist 180* When a spine is felt 180* opposite of a NBP, check that there is not residual bend in the shaft.
Mark A Patton [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Jim & Ivette Sent: Tuesday, October 14, 2003 2:57 PM To: [EMAIL PROTECTED] Subject: Re: ShopTalk: NBP-COG Hi Bernie, I agree with Doug but i strive to understand it, NBP-COG makes sense to me and I am going to try it out on a set I am putting together this week. I am still not sure about NBP, I am assuming that the spine is the section of the shaft that rolls away from the bend when a load is put on it from my spine finder, then the natural bend point will be 180 degrees out from that point? Then when you put the shaft into the housel and lay it off the end of the table the spine will point up and the NBP will point down towards the COG of the head? Does this sound right? Thanks - Jim ----- Original Message ----- From: "Bernie Baymiller" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, October 05, 2003 10:34 AM Subject: Re: ShopTalk: NBP-COG > Doug, > > > The more I mess with spines and scratch my head > > about how to orient the shafts, the more I appreciate shafts that don't > have > > spines. > > Me, too. > > > I suppose a strong spine properly aligned, whatever that means, > > might be better than anything. > > According to those who hit the ball harder and farther than I, aligning a > shaft's large spine (over 5 cpm?) at 12 o'clock makes a big difference in > reducing the size of the impact area on the face. The more center hits, the > more longer, accurate drives. Thus, it's called a "supershaft alignment." > Actually, though the USGA has made small deviations in stiffness around the > circumference of a shaft acceptable, large spines essentially make a shaft > non-conforming to the rules of golf...at least, that's my opinion on the > subject. > > > But it's hard to get bad results with no > > spine. I just wish I could find more shafts like that. > > That's true. The SK Fiber shafts which I've been using almost always have > less than .006" deflection (about 1 cpm) and play very well. Though I > haven't used any Accuflex shafts because of their high price, those who have > used them report they are as good as the SK Fiber shafts. And, most filament > wound shafts have very little spine. If these manufacturers can do it, so > could Penley, UST, Grafalloy, etc. IMO, the USGA should put a limit on spine > magnitude of 2 cpm. > > Bernie > Writeto: [EMAIL PROTECTED] > > --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.520 / Virus Database: 318 - Release Date: 9/18/2003 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.520 / Virus Database: 318 - Release Date: 9/18/2003
