Man, I don't think you guys realize that Chuck is not a very big guy. He's not even big for LHW.
Most HW's would have pretty big size / weight advantage.
And though Chuck has some wrestling credentials, he doesn't have the world class grappling background that allows smaller HW's like Randy and Fedor to prosper.
If Chuck can't make it at LHW, I don't think he needs to be fighting. I realize that LHW is a thicker division, but he would get smashed by most UFC HW's IMO.
Don Frye's Mustache > Kimbo's Beard