When I bought my stainless XSE Government I replaced the followers & springs in the 8-rd magazines, replacing them with Wolff 11-lb springs and flat, dimpled Metalform followers, restoring them to 7 round capacity. I personally dislike the short-legged, split leaf followers and the weaker springs that go with them.
I stripped the pistol and inspected it. The extractor appeared fine in both condition and tension. I scoped the sear & hammer and found the engagement looked text book perfect. Everything felt fine. I left the trigger as it came, since I happen to like a slightly heavier trigger on a 1911 used for service or off-duty.The ambi safety looked a little ragged on the underside of the left lever, appearing as though it had been filed in a few places to make it fit, although the engagement looked and felt fine in operation. Nasty looking, though.
The pistol functioned fine on the firing line with a variety of ammunition ... until the left-side safety lever snapped off while I was depressing it and it fell onto the sand.
The fellow I spoke with at Colt sympathized with my annoyance, but did remind me that the ambi assemblies weren't Colt parts, being purchased from an outside vendor. He basically said that such failures of vendor parts weren't that common, and he would pass it on.
Not being a particular fan of ambi safeties on my Colts, and being a Colt LE armorer, I simply replaced it with a single sided lever.
Aside from that, the pistol has functioned fine for several hundred rounds. Reliable and accurate. What I expected.
I'm not going to start replacing any other parts until the existing ones either start to exhibit signs of excessive wear and require regular replacement, or unless something else breaks.
The various springs will be replaced as normally expected.
Nice pistol.