In my golf career, I have been trained in many club fitting systems from most of the top manufacturers and generic fitting systems. I have worked retail golf (nationwide chain), major equipment manufacturer, private (TPC courses) and country clubs open to the public. I also fit golf balls based on spin rates generated by clubs/swings.
I used a Taylormade Tour Burner (original dimpled model) 7* driver with a 44" X-100 steel shaft until the late 1995.
My fitting analysis by 2 major manufacturers as well as independent fitters & PGA pros has always been: "comfortably" in X-stiff shafts. Irons, DG X100 or Rifle 6.5's. Woods: X-stiff, tip stiff (even 2X). I never felt comfortable with those clubs. They felt too stiff.
I always believed there had to be another way of fitting golfers. I took a shaft load/unload profile test. The data showed that my shaft load/unload profile was almost identical to Davis Love III. (I think it was a True Temper test?). Still, those clubs just never felt right. Too stiff.
I ran into a fellow who had a different fitting system. It was more a visual & seat of the pants fitting system. He had a staff bag with about 40 clubs in them (4 and 9 irons)....all various frequencies. I hit balls for several hours one day, on my own. I ended up with 2 specific frequencies (4 and 9 irons) that produced the straightest flight, best ability to work the ball, gained distance, and most importantly felt comfortable to me. I thought it was a sham, to be honest. I had a 2nd test session, several months later, thinking physical fitness or practice (or lack thereof) could influence the test. To my surprise, I selected the EXACT SAME FREQUENCIES. Again, I was still skeptical......Several months later, I took the test again. This time, I was lined up on the range next to a Sr. PGA tour player, taking the same test, and in our discussion, I heard of a few names (that I would be surprised to hear) who have taken the same tests and changed to the shafts after the tests were concluded. After hitting balls for several hours, again EXACT SAME FREQUENCIES for a 3rd time. I was surprised that I could actually "feel" the difference between 5cpm. Of course, I didn't know it at that time. He even gave me the same shaft frequencies more than once, saying they were different, to make sure "I wasn't cheating".
This person had no allegiance to any manufacturer or shaft or shaft maker. I bought my own shafts, took them to him and he reshafted my clubs. I paid my fitting fee.
End result: my shafts started at REGULAR flex in the wedges and progressed to LADIES flex in my 2 iron.
I don't have the numbers from my shaft test. And Ken's fitting system sounds like it quantifies the things I "feel" during a golf swing. I am in southern california and if there is a fitting system like that around here, I'd like to get my new irons fitted with new shafts. The only issue I am facing is finding standard steel men's shaft diameters (.580/.600) in a ladies flex for my longer irons.
Looking for my perfect shafts. Need help.