Great conditioning
I wonder how much Joe's stache "weighted"
That's why he kicked Mentzer to the curb. No matter how muscular, ripped Arnold, Sergio, Robby were, they were no match for Joe's stache. But Mentzer came along and the sheer majesty of his stache installed the fear in Joe that he might not retain his title for much longer. he was about to get outmassed. Stache monster era would have begun if old Joe had let Mentzer climb his way to the top.