It's good to see littlejohn bring some facts and research to the discussion. I was starting to think that this was just a debate about fashion. Although, I am on board with those that say it doesn't matter, as long as there is some sort of uniform, I will oppose the gray with pinstripes.
You see, for many years the black and white stripes have been a symbol to the officiating community. They remind us that the rules are the rules. They're black and white, with crisp, well defined edges. This alternative shirt consists of shades of gray. I've always said that I don't care how a ref officiates, as long as he's consistent. Forget the gray areas. Was that a takedown or not? Do we want a sport where someone gets a point and a half for an almost takedown?
Besides, the vertical stripes have a slimming effect on our referees and hide the effects of a decade or more of cutting weight before retiring to a life of internet forum posts, cold adult beverages, and post meet chicken wings. Maybe all of the other states are going with gray shirts, but this is Indiana. We were one of the last states to switch to daylight savings time, and many still oppose it. Like mom used to say, "If all of your friends jumped off of a bridge, would you jump too?". Don't let your mothers down. Fight the conformist movement that is gray shirts. I refereed for a short time, and I'll never forget my first weigh-in. After the the wrestlers left the locker room, and the first coach had already been kicked out another referee looked at me and said, "These colors don't run. Don't you ever forget that.".