Yep. Also, Jones was so mentally strong in the first Tarver fight because he wanted to prove to people he could come back and be the man again. I don't no what the hell happened to his chin in the second fight as both guys came to fight. In the third, Roy look uninterested and was not hungry at all. I don't remember if Lacy landed any good shots on him but I'll find out in a few weeks time.
Nevermind, in the video I showed he does take good hits by Tarver. I meant to say after the first Tarver fight is when you saw Jones' lack of punch resistance. Thanks for correcting me. To answer your question, I think dropping alot of weight does effect your endurance though I could be wrong.