i have recently purchased a r7 460 driver 9.5 stiff. my swing speed is 100-105 mph. they said to be comfortably in the stiff flex i should have a 95 mph swing speed, which wasnt a problem. i have herd that tm shafts tend to run slightly more stiff than other shafts because of the interlocking build instead of the layering like most do. however i looked online and found i grid showing swing speed chart for certain brands and it looked like you were right inbetween stiff and regular, the question i would ask is what is your age? if you are below 20 or so i would say go for it because you are only going to get stronger if you are already peaked in strength i say pass. btw the chart i found is shaft chart