I was pondering the same thing a month or so ago. I ended up getting the PB factory mags instead, but I can say that I have several "junk" pro-mag's that work just fine now that I adjusted the width of the magazine lips. The problem I had was that the slide would lock back and leave one round in the mag. The lips were too far apart and letting the bullet sit up too high, and thus the floorplate to high, which was just enough to push the slide release up enough to catch the slide and hold it back. My point is that even if they are not the "best" mags, the 92FS seems to be fairly tolerant of lesser quality mags.
