Other things end up in pockets, and can get into the holster as you move around. Coins, especially, can get into it and get wedged into the trigger guard.
Do NOT carry anything in your pocket, but gun and holster! Keep all other junk in other pockets. You don't want anything getting in the barrel, tying up the cylinder, whatever, and when you need the gun, you don't want your keys in the way. :banghead: My gun pocket is dedicated to the gun, nothing else. But, I agree about the Glock "safe action", not too safe. It ain't pocket sized anyway, unless you're Paul Bunyon. My P11 has a LONG DA and I like it that way for safety's sake. It ain't hard to shoot if you get used to it. I've shot it monthly for nearly 11 years, though this past year I've been in more revolver moods at the range.
There is no 9mm smaller or lighter than the Kel Tec PF9 that is +P rated. The P11 is only about a tenth of an inch thicker and 2 ounces heavier, but is high cap. Other than the Rohrbaugh, there is no smaller 9mm period and no lighter including the Rohrbaugh which isn't +P rated and costs and arm and a leg. The little PF9 is appealing at .88" thick and 12 ounces dry. the Kahr is a good gun, pocketable, but it's not as dainty as the PF9. The PF9 has a nine round capacity, too. The P11, with the new post ban mags, can hold 13 rounds, though I have the older 10 round mags.
I've heard a LOT of negative about the AMT Backup. I owned a Hardballer and that kept me from ever considering a Backup, frankly. Now days, there's the Kahr, the Kel Tec, the Taurus Millennium, so many better choices in autos. Of course, the revolver will never have an FTF, but my P11 hasn't either. If you keep coins and such in your gun pocket, you probably don't wanna carry a revolver, either. You could find the works tied up right when you need it. But, like I say, DON'T put anything, but your gun and pocket holster in your gun pocket. A piece of lint up the barrel could be enough to cause a kaboom.