JCMGI, no PM received, I think it might make you wait a bit to send them or something.
Ben,
I would ditch it but there is no difference with the new Gen 3. They're made the same. They're having the same issues. I'd bet money the problem stems from when they did the extractor "upgrade" this last time and switched the manufacturing process to MIM. They screwed the pooch or got an out of spec order. Now they're stuck with who knows how many out of spec crappy MIM extractors, and they're not just in Gen 4 guns, they're in everything (not necessarily all glock models, but all of the new production models that use that size and model of extractor). It's not the recoil spring assembly doing this, or at least not JUST the recoil spring assembly (which should have never been changed).
As far as the Gen 3 goes, I prefer the magazine release, texture, and grip of the Gen 4, that was the whole reason I got it. My mistake was assuming (you know what they say) it would be OK, because it was Glock, I would get Glock reliability. Ultimately I've learned a lesson I already knew, don't buy the first iteration of anything. There are always kinks to work out. Problem is Glock doesn't work them out (no kinks, just "Glock perfection"), they just ignore you, they already got your money, what are you gonna do? Sell it? So what, they still got your money.
I started trying to train for the eventuality of ditching the Gen 4 for Gen 3, but it didn't work. I tried doing a bunch of drawing drills and stuff around the house with the middle back strap installed on an empty gun for safety and it wasn't the same. With no back strap I'm dead on, it just sits right, in 2 weeks of doing it with the middle strap I never got used to it. It's kind of weird, I'm dead on with the 21SF and the grip is far larger than the 19 but it's fine, it points naturally too, but not the gen 4 with the middle "Gen 3" back strap. Make no mistake, I have and still do seriously consider dumping this piece of crap for a Gen 3, but what will it really accomplish? I give them more money for a gun made the same way, with the same defective part, a poor finish, and get ergonomics that don't work for me?
I'm pretty meticulous about researching thing before I buy them, and I kept coming back to the G19 because it had long been held as the standard for a "compact" high capacity 9mm. No one else is quite as small, or light, or narrow, with the same accessory market, "reliability", etc. It always came back to G19. Never had issues with the other Glock I own, or the several I have shot, and at the time I got it, the Gen 4 had just come out. There were none of these negative reviews or reports you see all over like you do now. It took me a while, probably over a year to get around to shooting it because I was busy with life, moved a couple times and had other things going on. I figured I had the Kahr for carry so it was no big deal. I finally got settled in, 45 got expensive, and selling the Kahr started sounding alright, so I made some time, got some rounds, and finally got around to using the Glock to make sure it would be good for carry. It's not. I've been dealing with this mess ever since.
Everyone rants and raves about M&Ps and XDs, I'm sure there's a reason, but I don't care for either. I won't touch S&W, they are not and never will be forgiven. No matter how bad I wanted to replace that crappy Taurus M94 with a 617 in .22lr.