Your theory only has one flaw: Dorian did HIT (old school HIT, not Mentzer 1993+) and had NO arms. But he did have GREAT LATS, A THICK CHEST and everything else that you just pointed out Mike does´nt have.
No it doesn't. Because Dorian didn't do HIT, he did his own modified version that included many more exercises and sets per bodypart than Mentzer ever prescribed.
Mentzer's only back exercise was the undergrip pulldown and maybe deadlifts here and there. This explains the comeplete lack of back thickness you see in the clip. There are abercrombie models with more definition and cuts in their backs. For chest all he did was incline press, and pec-deck flyes, thus he had very little overall chest thickness as a result. Dorian did atleast 4 exercises for chest, and 5 or 6 for back in any given workout which is why he carried the giant chest/back thickness he had.
Dorian did undergrip barbell rows, machine rows, undergrip pulldowns, 1 arm cable rows, then deadlifts in the same workout... Obiviously the guy knew exactly what he was doing when he built that monolithic back. Mentzer just said "Oh gee this one exercise hits my whole back, if I do more I'll over-twane!"
So the moral is that Dorian crafted Mentzer's HIT into a real muscle building routine that built something that regular HIT could never do. Mentzer with his superior genetics sadly only got the size he did because HIT will only take you so far with mass despite the tremendous strength you acquire on the few exercises you do. I think Dorian's chest after 2 years of training was thicker than Mentzer's ever was.
