Lol I'm 220 too shredded and I feel small.even though at the gym people always telling me shit like bro just let me have a few of your inches(which I told this guy that sounded gay af lol) or damn I'm working on it to get big like you and a bunch other complements. But I still tell my girl because we train together wtf everyone seeing because I sure don't lol.shes like babe you are huge.im like yea that's what she says ha ha haLOL, we so do. I feel small right now and I'm 220lbs.
Yeah, a slightly convex mirror would make a guy look thicker.I agree to a point about lighting has a role to looking better in a mirror.
Yesterday i was taking shower at my girlfriends house and her lights were dimmed and was night and i looked good in her mirror always have but noticed it with dim lights. So now the light theory isnt the only cause to looking better.
i also notice the gym has better mirrors in the cardio class room with the hardwood flooring. But again i might be just tripping lol
3 types of mirrors google says
Plane
Convex
Concave