Brian, your point is well taken. However you reduce the tactical advantage of concealment with every person who knows. If 4 people know it's a small thing if 50 people know it's not so small.
You can't fix crazy or stupid. If number 49 tells someone slightly unstable that you carry and he goes postal....
Something like this is very unlikely. But so is ever needing your carry weapon.
Oh and back on point. I carry my Glock 30sf or one of my Sig P220's. I practice every week and fire a minimum of 100 rounds.