some folks were locking back the slide on their gen4 9mm's in order to loosen up the strong recoil spring, but that was before glock came out with the weaker springs for the 9mm's. i haven't heard any issues with the gen4 g23, shoot away 
Friend of mine had a 17G4 that had some trouble for awhile. It worked itself out.I keep hearing the same old argument from people about the G4s. I am really wondering how much of it is just repeated from what someone else said. Then repeated again, and again, and you get the idea.
Good for you. I am not so fortunate. On my 34 G4 I had to manually assist each of the first 10 rounds to feed. Took it back to the store. They fiddled with it a bit and suggested I mark my magazines to see if all 3, or just one magazine was refusing to feed.My Gen 4's shoot great. I haven't done any kind of break in with them.
My how time flies ... Gen4 been around for almost 5 years. Another way to break any of those guns in would be to send them to Eastern Iowa with pre-paid return shipping and insurance. Include a prepaid voucher for 1000 rounds of the same caliber. Give me a couple of weeks and I'll take care of that problem for you. AT NO CHARGE!!!Did y'all see this a 4+yr old thread?
230, I've not heard of that problem with a magazine before, especially 3. If there's any residue left from the WD-40 you'll want to clean it out. Mags should be run dry to keep powder from having a place to stick.
If you think the mag springs are too stiff, I use a flat carpenter's pencil (fits in the mag opening well) to work the springs if they need it.
If the problem is isnt resolved, call Glock. Their customer service is excellent.
Ah ... and I bet you guzzle your wine, too. You have to savor the moment ... fire each round and enjoy the smell of the gun powder, the loud bang, the bright flash.Two weeks? I'll do it in two days!
Hey ... it's a burden. Goodness shall follow me all the way to the gun range. Uh, words to that affect.Buckskin and MtStream ... that is a seriously generous offer. Who knew guys like you even existed these days?