I see nothing wrong with bumping. The way I was coached, it's the coaches job to put the team in the best position to win on dual nights. If that meant bumping up to get better match ups, then that's what was done. Saturday's are when you wrestle for your own independant success, because independant success leads to team scores. Personally I think it's more selfish not to bump up if that will give your team a better chance at winning. The coach's job is to win, and to do everything they can to do that. If the coach has a better chance to win by moving some guys around, then that's what needs to be done. But that is all just my opinion.