Arnold was also 5% BF, had perfect lines, full muscle bellies, perfect tie ins, perfect separation, and rare symmetry. Consequently, those qualities made him look heavier than what he really was. Those qualities depict an optical illusion. I remember when I competed, I would watch the light heavy weights pose, they looked huge on stage, but up close they looked like I could pick them up and burp them. Don't get me wrong, Arnold was a freak, and should be never critiqued because imo,he is the pioneer of modern BBing. Nevertheless, having those qualities i stated make a person look bigger than what they really are.