The RSA's are sort of basic mainenence, and certainly cheap enough ($7) to over do.
As far as the extractors, Im still wondering if the original extractor was really the culprit when I was starting to get stovepipes, extraction, and BTF problems. This was during the onslaught of reports of brass to the head, and the various extractor problems people were reporting, and I let myself get caught up in it, and figured maybe that was the issue.
I wish now Id kept better track of what went on when. The extractor was fine when the gun was new, and it ran fine for a long while, and when I had issues, they came on quickly.
The one thing I dont do, and maybe I should, is keep track of my pistol reloads life span. I do with my rifles, but they have a shorter life and results of failure tend to be different. I usually shoot my pistol brass to failure, and that usually starts showing up, with split necks in the reloading phase, and of all things, extraction issues, as the rims get torn up over time, in the shooting stage. These days, Im cycling through around 7000 rounds of brass/reloads, but initially, it was about 3000, and the brass was being reloaded a lot more.
When I started to realize that maybe the brass was the issue, and not the extractors, and switched back to the second extractor from the third, as a test, it seems to have proved that out. Im still running the second right now. If I still had the first, Id have tried it.
One other thing extractor related, they do get real dirty over time, and do get stiff, or seem to lack movement when they do. A couple of blasts of Gun Scrubber when you clean seems to address that, and its pretty amazing how much crud you get out of the slide when you tear it down a couple of times a year.