NMGlocker,
If you personally have experienced all of these problems, I would give up on most guns if I were you.
1) Glock......KB's
2) Sig..........Rust, trigger spring
3) P99.........slide lockback
4) Beretta....slide failure
5) 1911's......jams on HP ammo
6) CZ's.......extractor problems
In my experience with the above:
1) Never had this happen and I've owned 13 Glocks at one time to include 4/.40's which I have reloaded thousands upon thousands of rounds for.
2) Haven't owned a SIG. But, I have seen the rust problem w/the 226's that I seen. Wipe it down. This doesn't impair function.
3) Never experienced this and I own 3 P99's. They are as perfect as a mechanical devise could be right out of the box.
4) Had a 92F, Italian made. Excellent gun. Shot about every 9mm round that I could find thru it. 100% and the slide didn't fail. It had about 10,000 rounds thru it when I traded it off.
5) I've had more 1911 pattern guns than any other semi-auto. I've had stock and custom and inbetween. FTF on HP's is only a minor adjustment and most of the time not required at all. I have a 1911A1 that was mfg. in the '40's and is as stock as they come. Feeds any type of HP to include the Speer 200gr. HP (flying ashtray).
6) Only had one CZ pattern gun and it was a POS! A true CZ, I've seen many and have fired them, is a great gun.
My .40/P99 was mfg. in 2000. I have never experienced the slide lock back problem with mine. I have read that this was corrected on all guns in '99. ??
My 9mmx19's were mfg. in 1999 and 2001. Not a single problem with either with any of their 13 magazines.
I just replaced the recoil spring assembly and striker spring on my oldest 9mmx19 P99. I intend to test fire it with a couple hundred rounds of 124gr. Winchester NATO ammo before I even consider carrying it for real.
Many people who experience a problem with a certain handgun platform automatically deem the gun a POS because they do not know how to diagnose or correct the perceived problem. Right away it's the guns fault and they badmouth it forever.