GUYS: Been up to my gills lately and more away from the computer than behind it - but I did look back long enough yesterday to see I made a little glitchie in one part of my explanation the other day. Dave is correct on the issue that the COR is higher for the lower speed in the way he stated it. I said the other way but later in my comments I came back to reality and said the same thing correctly. And to follow with a final note on the thinner faces that cannot survive the USGA standard ball speed COR test, the USGA will always agree to test any head (as long as you send the $75 fee that goes along with it!!) and will change the test speed to accommodate your head, but you have to tell them about it for sure or otherwise they will run the standard COR test everytime.
Happy 4th Everyone!!! TOM W -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Max Dupilka Sent: Wednesday, July 03, 2002 9:33 PM To: [EMAIL PROTECTED] Subject: Re: ShopTalk: Swingspeed vs. trampoline effect Dave: Comment below: > > > And on the matter of the USGA testing of the thin face drivers I > > designed that were for lower swing speeds. The USGA will conduct their > > COR test at ball firing speed less than their standard of 109mph if you > > tell them that the head is designed so it would not withstand that > > 109mph speed. I remember having to tell them this TWICE when they broke > > two of the drivers designed for a 75-90mph swing speed range. And at > > the slower test speed they still came up with a COR that they treated as > > "official" for the head. > > Actually, THAT was my concern in the last note I posted. Thanks for that > information. > > Max, I'm still interested in knowing why you think the thinner face would > not have to be submitted for testing. Especially given Tom's answer. > > Thanks! > DaveT I think Tom answered my question. The USGA tests at 109 mph and the thinner face might break at that speed. So you don't get it tested. Tom said that they will test at lower speeds however. Max...
