do you own multiple (different flex/torque/bend) shafts for your driver(s)?
I tend to collect shafts for drivers and like to mess around with different profiles depending on where my swing is at that time. I currently have as my go to shaft an Oban Kiyoshi Tour Limited. The others that are just hanging around at a Fujikura Ventura, Oban Kiyoshi White, Oban Kiyoshi Black, Project X HZRDUS Yellow, Fujikura Atmos Tour Spec Blue, and an old Matrix Ozick 6M2.