Well you'd have to imagin Tarver, his is slightly the bigger man and has alittle more power. Hopkins is about as filled out as he can get, if he did fight at heavyweight he could put on maybe 10 more lbs but thats it, or else he'd just be caring dead weight into the ring which would hamper his mobility. He'd have to weight-in fully clothed with boots and **** on. That said Tarver definitely has the naturally softer body, so he'd have to spend some serious time on the weights to make sure the added weight isn't just a spare tire around the gut. Bottom line neither guy belongs at Heavyweight, they don't have the size or power to be competitive. Hopkins might have the skill to aviod being KTFO but thats about all he can hope for.
Not anymore. BHOP can't fight 12 hard rounds anymore. Look at his last three fights: He beat a terrible, slow Pavlik whom he outweighed by ten pounds and but every cheat tactic in the book to get breathers against Calzaghe and RJJ. Adamek would kill him now.
After watching Hopkins-Jones II, I think B-Hop would get crushed at heavyweight. He is shot. After watching Tarver's last couple of fights, I think Tarver would get crushed at heavyweight. He is shot.