Pirog has injuries... he was old when he got into the game, even though he's skilled. Some people age more quickly than others. Not everyone can be a B-Hop.

Quillin just isn't graceful. Don't mistake lack of grace and fight smoothness with ability... sure, it looks good to look good. But some people just are fighters- Quillin is a fighter.

JCC Sr. wasn't that graceful. He was just a winner. Felix Trinidad wasn't graceful. In fact, Quillin has more grace at this stage than Trinidad had at this particular stage. The only thing Trinidad had was a sweeping left hook that he learned to refine over the years. But in terms of footwork, ring movement, slipping punches and to some extent, CONSISTENT COUNTER-PUNCHING, he was always lack luster.