Never had brass to the face with any of my pre Gen4 guns. My G20 & 30 Gen3, and 27 Gen 2.5 run flawlessly. I purposely stayed away from the Gen4 due to the problems mentioned.
Yep, and that would depend on whether Gen 4 parts installed in later Gen 3s, such as later and STILL produced G17s. Which mine was, and got an extractor swap, and runs as it should.