I tried 2 when getting fit for a GT-1 driver. Speed Mesh and Air Speeder. They do feel different and I went with the Speeder. My TSR fairways have the Speed Mesh, but I did not try the Speeder in those at that time.

I still have the TSR-2 that has a counterbalanced red shaft. After breaking a rack of ribs (6 total) over the winter, it no longer worked for me. I have recently put the Speeder in the TSR-2 to see if the heavier mass input more energy into the ball (speed). It increase launch and 1 mph ball speed, but raising from 8 degrees launch to 10 still didn’t increase carry enough over the GT-1 at 12 degrees. So the shaft helped, but not enough. Your results may vary.

TBH, you're better off getting fitted ratherthan seeking advice here. However, if you give more info I could get you in the ballpark. What's your swing tempo? Do you have a smooth transition or are you quick? What shaft do you currently play and what do you feel the lighter shaft will help with?

TBH, you're better off getting fitted ratherthan seeking advice here. However, if you give more info I could get you in the ballpark. What's your swing tempo? Do you have a smooth transition or are you quick? What shaft do you currently play and what do you feel the lighter shaft will help with?