If your driver is less than 5 years old and your swing hasn’t changed, the good news is you might not need to do anything. That said, it never hurts to check in with a fitter, an instructor who understands fitting, or spend some time alone with a launch monitor. I love the idea of refitting or retrofitting your existing driver. If something has changed in your swing, a small tweak of the adjustable hosel or a shift in the movable weight can be all it takes to make you fall in love with your drive all over again. If a shaft change is warranted, the aftermarket is ripe with quality offerings at reasonable prices.