Andre, A flat line set produces the same frequency across the set, but I don't know if that is necessarily the same "flex". Precision (and many others) believe that "flex" is a combination of frequency AND length, hence the sloped line for matching a set. Shortening a club at either end (butt or tip) will raise the measured frequency, but it also shortens the club, so if you believe in a sloped match, it could be a wash in "flex". For example, let's say I have a 38" 5-iron at 300 CPM, and I decide to shorten it 0.5" by cutting off the butt of the shaft. I now have a 37.5" 5-iron, which would have to have a frequency of 304 CPM in the Precision system to have the same "flex". If the club measures less than 304 CPM at 37.5", I have softened the "flex" according to Precision. It will likely measure less than 304 CPM, IF I return the swingweight back to what it was at 38" (requiring the addition of ~6-8 grams of head weight). If I do not re-adjust swingweight, it will be very cl! ose to 304 CPM, in my experience.
Tedd -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of André Cantin Sent: Friday, August 25, 2006 8:04 AM To: [email protected] Subject: ShopTalk: Flatline vs frequency chart I was in the Canadian GW store yesterday and had a good conversation with one of the managers who took the Rifle training before they went belly up. According to him a flat line(single frequency) set does not produce the same flex across the set. In his opinion the short irons are softer in flex than the long irons. Of course his statement is based on a frequency chart where the same frequency at a shorter length yields a softer flex. He also believes that a shortened club(leaving the tip as is) yields a softer flex as you are cutting away in the stiffest part of the shaft(butt section) and obviously just the opposite if you lengthen the club. I would like to know your opinion as I have read in many books that by shortening a club you make it stiffer. Swingweight is not part of the equation in this discussion. I also have always thought a single frequency set yields the same flex across the set Thanks. André.
