Hiya cousinmark and thx for your thread. I'd say that if the smith at cz-usa,and the folks you spoke to at cajun gun works and CZC couldn't answer your question, might re phrase the question to them or ask them to re phrase the answer. Seems like it might just be a simple misunderstanding. I had enough failure to feed,fire,and eject issues that after 2000rds just became a safe queen. The recoil spring/rig should be fine for many,many thousands of rounds,and with it having a five year warranty, I'd let cz-usa diagnose if and when you may need it replaced. Be well.