It helped BJ, didn't help Swick, so a crap shoot as most of life.
^ BJ started at LW and went up a class to fight Hughes, to which Hughes laughed and said "If he can't win the belt in his own division, I'm gonna smash him, and teach him to stay in his own weightclass" So using him for this discussion is kinda moot, unless your just referring to bouncing back and forth.
Its a chance to "reset" your career.
da Vinci 81 - ^^ I agree about Johnson but not Alves. I think he's an example of a guy who's maybe bulked up too much for his frame. He's only 5'9, so he'd struggle against MWs who have both height and reach on him since he's primarily a striker.
You do have a point there.