Okay, the new BG went along to camp, ran 4 magazines of mixed factory ball and my reloads. It ran fine, and the slide is noticeably easier to rack.
The shop knew the gun's history; I told them that S&W swore (on a Bible factory) that the thing worked, so there was no guilt in making my problem their problem.
I've ordered TruGlos, but won't install them until it runs more rounds.
Guys, appreciate the alternatives, and I have tried a little of everything over the years, including a Colt Vest Pocket on my daughter's wedding day.
The BG seems to have a lot going for it, but perhaps individual examples aren't as stone reliable as a Glock or a SIG.
Moon