I average about 250 carry and roll combined.
A little over a year ago, I did a driver fitting to get "optimized". I ended up with a 9* with an S flex, and did in fact pick up 15 yds. or so, but in EVERY direction! That club didn't last long...
So now, I'm back to a 12* driver with a flex in between an S and an R, and happily hunting short grass.