that's cool, all I can really say for breakin period is what I know from my Sigs, but I do know that after the first thousand rounds I've not had a single problem with mine
My P220ST has about 4500 rounds through it and I've had a total of 2 hangs the whole time, one time was bad ammo (Speer I think it was??). A very good friend of mine has a Glock23 that he absolutely loves, as does a gentleman at my church. To each his own, and just from my experience, the Sig's take about 1000 to 1500 rounds to fully break in (and boy do they feel sweet when then do). I don't carry mine till after that point.
Sheesh, though, if you want a gun that's freaking quirky, buy a Kimber. My little Eclipse Ultra shoots wonderfully, but I swear that thing is a booger before it's been worked in a little. I had all kinds of trouble with it for the first 750-1000 rounds. They're great weapons, but I wish Kimber would do something about the ramp in their guns from the factory. Mine's been custom polished with Winchester brass, haha.