All the visible signs? What do you think those are? The guy on the right? Yeah. Excessive vascularity, pinkish or red skin tone, etc. Curious what you think are the obvious signs on Hall. He looks the most natural of anyone there and I don't see signs unless you consider huge shoulders, which still isn't a guarantee of it. His face/head also haven't transformed since his younger days. Still the same Max Hall face, just older. He doesn't have a crazy jacked jaw line or skull growth, things like that.
You're exaggerating like crazy when you say "all the visible signs," if you know what they are in the first place. Someone being big isn't the automatic "all the signs."