My wrestlers knew that they may be moved up to fill a void, or for a specific matchup that might save team points in order to win the dual. Have I had kids upset or even dad's upset, you bet and I'd do it again because of what it teaches kids.
What did it teach the kids that loss because you made them "fill a void" when they might have been able to win at their original weight? The thing about wrestling is even in team duals the only kids that are happy with the team win are the ones that got their hand raised. The one's that lost are still beating them selves up for losing. You can look at from what ever way you want but when it comes down to it wrestling is all about the individual. That's how it has been and that's how it will always be.