I aggree with what's been mentioned already. The mental is probably the biggest obsticle depending on how bad It is, and where It's located. I could certainly understand It having an effect on some people though. If I just get a small nick in My shaft It drives Me nuts, but I have cleaned shafts for people that had as many as 30 or more dents in their shaft, and It did'nt seem to effect their usual level of play too badly at all. I've seen simular with warps in a shaft. I'm with Chris in that I'd rather not even know It's there in the first place If I could avoid It. I am guilty of rolling Mine out every once in a while though, but that's to make sure My shaft & butts are still holding up and rolling straight. I don't do It too often, just every once in a while.
Greg