Hey- Here is my CCF story. I've had the CCF stainless steel for about two years. I broke the locking block at 4000 rounds. It ran great for those 4000. CCF replaced the block. The new block in the frame produced FTE's. We tried almost everything to fix the issue and CCF finally said, "Just send me that frame, and I'll send you another one." Who does that? Nobody! Except CCF. The new frame runs great! I've got about 2000 rounds thru it on one buffer!!! I'm winning B class at state level competitions with it.
This is the sad truth. Most of us Glock guys like to think we are gunsmiths. We are not. We know how to turn a Dremal on and off and melt plastic. Even if we are certified Glock gunsmiths, we just don't know anything about metal frames. When CCF says to use OEM barrels there is a reason for it. When CCF says not to use a metal guide rod there is a reason for it. When CCF says to use a heavier recoil spring there is a reason for it. OEM barrels are plenty accurate and the weight of the frame far outweighs the weight of the spring or guide rod!!! All day long.
I like mine a lot.