This whole rehydration thing is dangerous in a lot of ways: You often end up with something along the order of a middleweight fighting a lightweight or light-welter. The smaller guy, in these cases, stands a real chance of getting seriously damaged or even killed. Take a look at Gatti-Gamache for just one example. The rehydration thing doesn't rehydrate brain fluid for someone who has seriously dried out. So while the body gets bigger, the brain is more at risk. What would it mean if the Association of Boxing Commissioners (and thus every state commission) and the sanctioning bodies made this move? It would mean some super-hydrating guys who are superior only because they are fighitng smaller men would go from being middleweight contenders or champs to being light heayvweight also-rans, or welterweight standouts in some cases would become middleweight fodder. So what? If that's the only thing that makes them championship-class fighters, they would be weeded out in favor of natural welters and middles, etc., who are better. Why would that be a bad thing?