Ok guys. What is the generally accepted frequency for a 275 g head on a 36.75 inch steel shaft clamped in a 5 inch machine? 2 numbers please R and S flex and i know that is purely subjective. I tipped my FST -115 two inches and i get 304 on the machine with a 275g head. What is the general consensus on this "flex"?
I'd say at 304 its pretty close to a standard Senior flex, maybe a hair stiffer, add 12 cpm for Reg and 24 for stiff.
Peter. Based on some of the charts i have seen 310 is closer to an "R" than the 316 you reference. What ar you basing your answer on? I was going to go for 308 as my number. Getting old. May have to pull some grips and check some clubs i have to see what they are. ( built before my freq machine)
candukid
My Kaufman charts show 318 for Centerline R flex at 36.75 . i've only ever used these and trust them.
In my SL set I went a bit stiffer in short irons and softer in long irons. I felt it would help with trajectory control in shorter clubs and help elevate in the 4/5. This is what i like to build for all my sets anyways ( between stiff and x flex in wedges and between R and S in the long) I still hit the SL high lofted irons high but the the lower lofts launch ok.
FWIW, note that the FST 115 is a bit different than most in that it comes in combo flexes of Senior/Regular and Stiff/Xstiff.
Rickochet This is why i chose the s/x
I have three charts here that show a 36.75 inch club at 312, 310, and 300. Peter says 318. I know its only anumber but st least show some consistency. I'm going to stop at 308 and try that.
candukid I'm going to stop at 308 and try that.
I have been playing the FST 115 for years and in general I find them smoother feeling than other offerings from Apollo, TT and Nippon.
are these charts all using the same clamping length ? I believe RP uses a 2.5 inch clamp and regular+ or 5.5flex at 36.75 is ~ 308cpm. Kaufman uses a 5 inch clamp
Have you tried the XP 115s? Can you compare them to the FST 115s? Just curious...
toraider Have you tried the XP 115s? Can you compare them to the FST 115s? Just curious...
I have not played the TT XP 115 and at $20 more per shaft than the FST I probably won't.
Sorry to clutter your thread Lee...
Thanks Rick, I have a gift card to use and found some shafts on closeout. So, I will try the XP 115 shafts.