One's level of trust in a specific gun is only as strong as the last stoppage. If you can't trust it, that isn't going to leave your brain. So either take it and shoot the shit out of it until you KNOW it will go bang every time, or give it a new home. For those who haven't experience a failure of some kind yet, you don't own enough guns. Mechanical things are not perfect, even the best ones. Contingency one should be, "shit happens". Murphy lurks. Be prudent.