It will be everybody's problem when fatilitys increase and the sport ends up getting banned.

Fighters won't stop doing it.

The playing field is level now as it is... the majority of 147 pounders fight at 160, 154 pounders at 170, 160 at 175 etc... All it's done effectivly is create a buffer that is letting these guys get down low like they are inevitably going to try and do no matter what, but with out as much risk. Fighters are always going to go to ridiculous lengths to make weight... no matter when the weigh in is... history has shown this.

You shouldn't have to change the rules just so that Manny Pacquio can move up as many weight classes as possible... if he wants to advance upwards and challenge other fighters he can - but there's going to have to be a point where they get too big for him... which in my opinion is Welterweight.