I have two P-07's which I purchased new, manufactured in 2017 and 2018. Each has several thousand rounds through it, and never had any reliability issues with either.
I run CGW trigger return springs, recoil springs, and firing pin retaining pins. I keep spares of all those parts. I've never had a failure with any of them. I have proactively replaced the TRS on both pistols when I had them detail stripped for other purposes, and I have fairly low round counts on the recoil springs I am running in them at the moment. In the case of the CGW TRS, I noticed they had significantly de-tensioned with use compared to the new ones I replaced them with,
I have aftermarket titanium guide rods I use in the pistols, mainly for weight reduction, as well as some stainless steel CGW ones that I have as spares. I prefer to run uncaptured springs on metal guide rods, if for no other reason than they are easier to clean than the CZ plastic guide rod assembly.
I also have a spare slide stop. Never had one of those break either.
To protect your FPRP, if you dry fire a lot, you can stick a rubber o-ring, or some other impact dampener, over the back of the firing pin to prevent premature wear. In any case, the type that CGW sells is more durable than the factory CZ one. There was a chunk of metal off the factory one in my firing pin channel on one of my pistols, the first time I stripped the slide, with less than 1K of live fire and not all that much dry fire. They are prone to fail, and when they do, your firing pin may get stuck or have what appear to be light strikes.
