I am very skeptical about the cleaning and re-oiling theory. Maybe for an ejecting or failure to feed issue or something like that, but a solid jam past slide lock requiring significant force to free-up ... I'm having a hard time with that.
Getting back to the original problem ... I have a new (~500 rounds) Shield 9mm CA model that has had the slide jammed passed slide lock once on about round 400. Once in 400 rounds is too many times for a CCW IMO. I called S&W and they promptly gave me an RMA. After waiting 1.5 months I...