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The Annoyed Man wrote:FWIW, I would consider any small single stack pocketable pistol in 9mm to be a "micro." This disqualifies all of the mini-Glocks except the 36, and it is disqualified by caliber if we are restricting ourselves to 9mm only. I'm not knocking the other baby Glocks–they're all good guns–but the width inherent in a double stack disqualifies them from consideration for these purposes.....

.....but that's just my 2¢.

I agree to a point - and to be clear I wasn't directly comparing the baby Glocks to the single stack guns in a "same class" way - merely using baby Glock as a starting reference point and working my way down to the smaller and smaller form factors ...

My slight disagreement with your assessment is there now seems to be two form factors of single stack subcompact 9mm on the market - easily described as the difference between the Kahr P/CW guns and the PM/CM guns (half inch difference in overall length and height, basically) with the true pocket worthy micro compact PM/CM size being smallest, generally speaking (leaving out the Rohrbach)

large single stack - Kahr P/CW, Walther PPS, Ruger LC9 etc
micros single stack - Kahr PM/CM, Beretta Nano, Sig P290, etc.

EDITED TO ADD: oh and as an aside, while it is single stack the Glock 36 is actually a larger gun overall than the "baby" Glocks 26/27/33 - it is longer and taller and only very slightly thinner - G36 is actually closer in relative size (although thinner) to a mid-size Glock 19/23/32

Define your parameters for "micros" 9mm ... the Walther PPS has a nearly identical trigger to a Glock and is thinner and lighter than a Glock 26, but not much smaller in overall heigh/length dimensions.

The Ruger LC9, Taurus 709 "slim", Kel Tec PF9, Kahr P9/CW9, Kimber Solo and a few others are not much smaller really than the PPS.

If you're wanting something considerably smaller than a subcompact Glock, then I assume you're meaning something like a Kahr PM9 or CM9 - of these two, the higher end Kahrs (IMHO) have noticeably smoother triggers but they're different than Glock - smoother all the way through the pull, but a bit "spongy" .... there's also the newer Beretta Nano (no experience) and the Sig P290 (experience limited to holding/dry firing at a gun store - DID NOT LIKE THIS WEAPON AT ALL - slide bite seems like a foregone conclusion and the trigger is horrible).

Edited to add: Oh, and the little Rohrbach 9mm pocket gun - but for the same $1,000 dollars you could buy any of the guns listed above AND have every pair of pants you own altered to pocket carry the one of the other slightly larger guns.