You move up or down a weight to help your Middle School Team or your High School Team. You don't worry about it in jr. league until maybe Sub's? Then you look at it and try to separate them but most of the time it can't be helped?

We have kids in the same weight class all the time and there is nothing you can do about it?

It sounds to me like that coach doesn't want to lose to a kid from his own team? To bad? His kid needs to improve or move up or down himself?