Last year after getting my Callaway 3Deep my driver use went down to about 5 holes each round. This year I've started some golf specific exercises and am actually longer off the tee because of it. I now carry a 2Deep and am killing it. My old rule was never pull driver unless the hole is over 400 yards. Now I'm hitting the 2Deep on almost all par 4's under 425 yards and also hitting it on many of the par 5's.