Frequency of spring replacement for infrequently shot SAO autos (P238)

That was an awkward title. So I have a P238 I bought from another forum member that has quickly become my gun when I can’t carry a gun and my lounge around pistol. I just shoot it much better than my J frames and it carries better in my particular pockets.

Anyhow I don’t get to the range as much as I would like and it stays condition 1 in a pocket holster locked up when not in use. When I switch to shorts for the night or need it for NPE carry I get it from the safe and drop the holster in my pocket where it stays until I lock it up again.

I know recoil springs in these little guns need to be replaced more often but does the same apply to the hammer spring? I know modern springs wear out by cycling (compression and decompression) and aren’t supposed to “set” under long term compression but I’m not sure how often I should be changing it. Annual round count will be around 600, should I just change it every 500 (about every 10 months) like the recoil and firing pin springs?