I forgot about this thread. Glad to see it pop up again.
Since I'm left handed, I required the ambi safety which can wear out thus become possible liability.
Since posting this thread, I've done some research & it seems the plunger tube set-up/design gets criticized. Not sure what "Fix" is out there for that.
About the only thing, I want to add to my Colt XSE Gvt is night sights.