Ok, no one is up to the challenge of answering the question I asked: "For those of us who have shot a J-22, what is the WORST thing about them?"
I'm going to give y'all the answer. The first time you shoot one, most people (like me) tend to grip it a bit too high; the slide come back and nicks you right in the web of your hand. OUCH! That's how you can tell if anyone has actually fired a number of rounds through one - it's not something you tend to forget!.