Re: School me on Mike McCallum
He was an aggressive fighter, usually coming forward, which makes how little he got hit solidly pretty remarkable. His upper body was always moving, sliding this way and that, never squaring up to his opponent, and he had this absolutely uncanny way of directing his punches in mid-flight; just a remarkably accurate puncher.
He patient, too. Not every punch was meant to debilitate, some he'd pull off of a little bit, either to figure range or gauge his opponent's reactions to something. Then he'd start ripping away to the head and body with both hands, yet always remaining elusive. I can't remember too many times (none come to mind, actually) where he had to take flush punches more than one at a time. And if he ever had to, his iron chin saw him through.
And no, Hagler didn't duck him; that's complete nonsense. He didn't move up to middle until after Hagler retired.