I currently had a fitting to increase driver distance as my cally XR was getting old and hoped with new technology I may gain some distance. Long story short, it didn’t work out. I tried different Titleist heads and shafts and couldn’t find any more distance than what I currently use. Guess I’ll stay with what I have. Why pay a lot for something that doesn’t work. I did order the T150 irons which I gained 1 club length over my miz’s.