Who Should Use a Flex Shaft?
Players with Swing Speeds Between 85-90 Mph (Typical of Beginning Male Amateurs and Many Senior Players) Will Tend to Select a Club with a Regular Flex Shaft...
Players with swing speeds between 85-90 mph (typical of beginning male amateurs and many senior players) will tend to select a club with a regular flex shaft. The middle ground between regular and stiff lies generally in the range of 90-95 mph swing speeds.
Should I use stiff or regular shafts?
If you have a slower swing speed, you are probably going to want to choose regular shafted clubs because the additional flex will provide a little more power and accuracy. When you swing harder, the stiff flex will be more controlled and give you the punch you need to hit better shots.
Who needs a stiff flex shaft?
If you're swinging the driver above 105 mph, it might be time to get some X stiff shafts in your set. Stiff – This range is still considered fast, but you most likely won't be out on Tour anytime soon. If you're between 97 and 104 mph with the driver, you need a stiff flex.