What's the difference between regular and stiff shafts? A stiff shaft is firmer and harder to bend than a regular shaft, and so more often than not, they're also heavier in weight. As a rough rule of thumb, the more speed you generate, the stiffer your shafts should be.

Do I need a regular or stiff shaft?

If you hit the ball about 200 to 225 yards, Seniors shafts are probably right for you. If you routinely can hit it about 250 yards, pick Regular shafts. But if you hit it longer, choose Stiff ones. And unless you pound the ball 300 yards or more, stay away from shafts that are Extra-stiff.

What swing speed requires a stiff shaft?

Players with swing speeds between 95-100 mph tend to gravitate towards stiff shafts, with 105 mph being the point at which some players begin to use x-stiff (extra stiff) shafts, particularly in their drivers.