It fired fine (as it always has) but it still stuttered a bit chambering that first round. It was really doing it before, often to the point of not chambering the round at all, but now you can just feel a slight hiccup as the slide slams closed.
Huh. I guess its an improvement. Will I trust it? Not sure yet.
The repair order said that the slide/barrel was replaced. By looking I can't tell what was replaced or not (should have subtly tagged both I suppose).
PS. I rented a Glock 21 and XD in .45. Shot both. Liked the trigger on the XD a bit better.