Bring bac same day weigh-ins

if boxing brought bac the same day weigh-in it would make all fighters fight at their NATURAL weights thus ending all confusion and agrueing. for example. Floyd weighs in at 147 and comes in the ring between 147-150 after rehydrating. Mosley weights at 147 and comes in the ring closer to middle weight ( 156-157) that like a welter fighting a middle. when pac was fighting at 130 and 135 he was gaining 10-12 overnight. there is countless other examples i dont need to metion. this isnt just a Floyd or Pac thing, this is a boxing thing. bring bac the same day weigh-in