I never said huge, just big. Folks usually assume that small guys are the sneaky ones, not true.
I used to be pretty lean in school as well, and was picked for basketball. Can't play a damned game well for the life of me. Used to be decent at baseball despite not being able to run well and having an oversized strike zone. 'Course, I bat lefty with a right-handed grip, which confuses people.
And I know a bit about holsters as well, but everything I know is book learning. Canadian, remember? Not much of a chance at practical experience unless a few laws change.