We have more than one different association in our area who assigns umpires. Who and where you happen to be playing that day determintes where the umpires come from. I just had five games in a tournament last week that used the umpires from the best association in the area. I had one question on a close play at second and was told that my F6 missed a tag. Other than that, at no time did I feel the need to question anything. These guys are great and I hope more and more of our opponents start using this group.