If we had the same day weigh-ins, Sure you might see a few fools try to loose ten pounds and even a few will be able to achieve it and come in competitive. But boxing is better off keeping the playing field even because the practice of fighting at a lower weight will fade away. You wont get guys who are obviously two weight classes over fighting down. We often see those that do dominate a weight class. Paul Williams comes to mind. Guys that have matured their bodies will be forced to move up in class sooner because they can't make weight. If same day weigh-ins were already in place, Hatton / Pacquiao might have happened last year And we probably never would have seen a Dream Match. As far as a guy getting killed, at first I might be inclined to think it's dangeriuos because it's many fighters norm, but it's just too hard to do for most fighters. So I have to disagree....