I do not believe there are any hard and fast rules about who fly's when and where. It is more a common courtesy to allow the students to fly for a while or at one end of the field and then just change thing's around. Every club has members that are going to be Butt Heads, so it is something that you just have to wait out. The Karma will sooner or later get them. Don't give up on what you enjoy because a few are not playing fair. Enjoy the hobby to the fullest and make friends with all that you can. Good Luck, Dave