For about 20 years I would visit my close friend and “PGA teaching pro” every two years for a high level evaluation of my swing specs. The end result, for the most part, resulted in the same out come, 2° upright with a 1/2” half inch added to the Project X5.5 shaft. Life got in the way and I got older and hadn’t had it done for five years. I started to doubt that my swing was the same. This last time, I let 4 years go by and I wanted to once again eliminate doubts about my swing and equipment. This time I wanted to get fit by someone that doesn’t know me, my game or my ability (now up to a 6 handicap). Simply look at my swing/results, swap out shafts and heads, then recommend equipment based on the results. After a couple hours, the science paid off and we made proper equipment changes (stayed with Titleist ) With all that said, I have a couple questions; for you that know about puring a shaft, or have had it done, do you believe a premium/upgraded shaft needs it? How often do you have your swing evaluated (check your specs)?