the grip safety only prevents the hammer from falling. i would look at the firing pin safety. its a big fail point.
my opinion they dont belong in 1911's. but its there you gotta deal with it. if its under warranty send it to s&w. if you dont feel comfy doing it yourself take it to a gunsmith. they can fix the stupid firing pin safety
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent