Took the new GT3,out for a spin earlier this week and used my shaft, mixed results, hit it better at the range than on the course. Interesting that a podcast from Michael Bree’s on Adam Scott and him going back to his old fitter changed/saved his 2024 season, in hindsight may have bit me in the a$$ when I used my shaft. Sticking your own shaft in a new driver with new technology may not benefit you, that’s why you should get fit, and allow the fitter to introduce shafts for the new equipment.