Although I agree with the premise that using urethane on most patterns is a bad ball choice for a majority of bowlers, I would have to stop short of blaming my scores (or lack thereof) on someone else's ball choice. There are plenty of ball choices (other than urethane), rev rates, parts of the lane being played that can have negative and positive effects on your scores, to only pick 1 scenario to complain about is very short sighted. I'll take a guy throwing urethane over a guy throwing 500 grit with a high rev rate who is left of me, unfortunately, those aren't "choices" we get to make when bowling, we take the changing environment and score the best we can. I'm sure you wouldn't yell at an 80 year old lady throwing plastic all over the lane, you would deal with the environment and make adjustments to combat the carry down.