I like the armored rule in theory, but I wonder if it's something that can be enforced without replay. You'd have to determine that not only did the guy get hit, but he got hit only on the body armor. I'm guessing the intent of the rule is the elbow guard. The elbow guard allows players to hang over the plate, and half-heartedly move to avoid an inside pitch. So I'd be in favor or that rule right away. Wear an elbow guard. If you get hit in the guard and no where else, no base. By contract, if you wear a shin guard and get hit there, I'm fine with getting the base. No one is sticking their shin close to home.