Does the shaft flex get overlooked? in Lessons, Drills, Mental Game, and Fitness Tips Posted May 2 I'm 74 and still play Stiff shafts and play to a 9-10 (though they're in the middle of the Stiff spectrum---e.g. Project X Stiffs tend to be a little too stiff). I think my driver swing speed is in the middle to high 90's. But I think the main thing is how you swing, and where do you tend to put the most energy. I've seen guys who swing "slowly" and very fluidly throughout the swing who seem to do well with the softer shafts, but if you're a little aggressive on the downswing (I am), you may still do well with a Stiff shaft. And then, of course, there's the kick point which can make a difference in how efficiently you apply energy to the clubhead...Agree with the guys who say, see a fitter.