Based on the current concern about weight loss, I think requiring wrestlers to be within a certain amount of weight for challenges would be the correct thing to do. Otherwise, you might have kids showing up on Monday that are 15 lbs. over weight and trying to make weight by Thursday. Been there and done it, but I wouldn't wish it on anyone. And while I don't think you need to make scratch weight for a challenge match, if having a weight restriction for challenge matches creates weight problems for an athlete, perhaps they are at the wrong weight.