When I was in MRAP school at Red River Army depot during a trouble shooting class the instructor had put electric tape around one post on a battery. I kept checking for voltage there but was probing the post & NOT the cable terminal! I knew I had voltage but couldn't figure out what was wrong! Or why the instructors were laughing at me!
A truck that has given a problem starting can never quite be trusted 100% again, you always wonder if or when it will let you down.
Kinda like your pistol. Mine's never failed to go bang but what will it do when your life depends on that bang?
If it's ever hiccupped you will always wonder...