My remedy for years has been a range gun and a carry gun. The carry gun gets range tested until it proves 100% reliable with several hundred rounds of defense ammo. The range gun then gets the wear and tear on range outings. For the SD9 VE I also have a range only factory recoil spring assembly. It gets the wear and tear and during reassembly after cleaning following a range session a tested and proven but lightly used factory recoil spring assembly goes into the gun until the next range session. I also have range only magazines. Carry mags are tested and proven but again the range mags get the wear and tear. I use SW9 VE mags for the range since the different floor plates make it easy to differentiate between the two. It works well for me and so far with 10,000 plus rounds through SD9 VE's I've had no incidents although I did retire one recoil spring assembly when it started looking rough.
Best Regards,
ADP3