How much of a difference

[boxingfan4life]

I was wondering how much of difference is it for a fighter for example to come from 154 to 160. People always say that fighters like Taylor or Cotto fight nothing but smaller guys. Their only smaller by 5 or 6 pounds so can someone tell whats the big difference between five or 6 pounds.

[hemichromis]

depends on the fighter hearns adn jones seemed almost un affected

ray leonard wasn't as good at 160 nor wAS BENN