Can anyone give me specs or direct me to where I can find the specs to help me understand the difference between the Titleist blue Diamana Kai’li shaft on the 910 range, the replacement Titleist Diamana S+ on the 913 range and the replacement of that the Titleist Diamana S+ on the 915 range. I have all three in driver, 3/5 woods plus rescue 21 and am trying to get my head around and understand the technical specs/differences with each and where they are directed. In the case of the 3 wood they are Titleist Diamana Kai’li 75 mid S in the 15⁰ 910Fd, Titleist Diamana S+ 72 S in 15⁰ 913F and Titleist Diamana S+ 70 S in 15⁰ 915F. All are in stiff flex.

I am getting on a bit now, hcp is 12 with driver swing speed +/-90 and ball speed +/- 130. It seems to me that there is a substantial difference in performance between the shafts with more of a mid kick point and stiffer tip in the Kai’li but I would like to look at the specs.

I am currently using the 915 3/5 and rescue but not the driver. I had a Titleist driver fitting last year for 915D3 9⁰ and Aldila Phenom 70 3.2 Stiff shaft, spent a small fortune on it but when I took it to the course I felt it was not giving me the same results and stopped using it. I am currently testing a Diamana S+60 stiff shaft in it.

Thanks for reading this and any help you may be able to add.