seed speculates:
As for the phase 3 malfunctions, I think I read somewhere that they could be caused by the New York trigger set-up. Don't quote me on this, but I seem to remember something about it. I can't remember how they would cause this to happen, nor why they would, but...anyways. I could be wrong...it wouldn't be the first time. But I can tell you that I never came across it (phase 3 malfunctions) personally, nor have I read about it from G19 owners on this or other forums. Maybe it has something to do with the lack of popularity of the New York triggers, outside of the NYPD. But check for yourself.
The NYPD Phase 3 issue is one of the most curious firearms syndromes since the perplexing "2.8 Bullseye Surprise," but it's real.
I'm not sure how it could possibly related to the "NY Trigger" (actually a "connector") and I don't even think that Glock, Inc. has ever tried to float that one.
When it first surfaced in NYPD in 1996, Glock successfully argued that it was ammo-related… but then that's always been Glock's second line of defense, right after "the shooter is limp-wristing." At the time, NYPD's issue round was the "Winchester White Box" USA-brand 115-grain FMJ, and random samples testing revealed that the round was close to the bottom end of the 1050 fps specification, and that some even fell below that.
Then, the Black and Hispanic community leaders hysterical protestations that "hollow-point bullets are designed to maim and kill young men of color" having been overcome, NYPD finally was able to switch to the 124-grain +P Gold Dot HPs, the velocities of which should surely have addressed any sort of Phase 3 stoppages due to "under-powered ammo."
They persisted, and two years ago Glock was finally forced, in order to keep NYPD in their column, to set up a "temporary machine shop" at Rodman's Neck in order to perform some milling procedures to the NYPD pistols… which process, BTW, was not designed to prevent the Phase 3 malfunctions so much as make them easier to clear should they occur.
Why have those stoppages been almost the exclusive provenance of NYPD (with a smattering of such reports from Philadelphia, Boston and the District of Columbia)? No one's ever figured that out… but I have a good chum, a former NYPD MOS and Senior Gunsite staffer, who has experienced more than one hundred (100) with his "teaching Model 19" (privatedly purchased and not issued to him) all over the USA! He's become quite adept at clearing same.
With all that though, to get back to
Cameramonkey's original inquiry, I think that the Glock Model 19 is a superior choice for a 9 X 19mm pistol, arguably the second most excellent "CCW Glock" after the Model 30.
By the same token, the SIG P228 is a kick-arse PDW as well… but the Glock 19 is probably a lot more durable and would require a less intensive maintenance regimen.