I am, by nature, a gun hipster. Over the years I've owned lots of weird guns and treasured them for their weirdness: In a world of Browning-type short-recoil pistols and conventional Smith & Wesson revolvers, the gun hipster will seek out the rotary barrel, the gas-delayed blowback, the upside-down self-cocking Mateba revolver.
How can you spot the gun hipster in a group at the range? They're the one who, instead of shooting, is going on and on and on that the main reason the .41 Action Express didn't catch on was because the shooting public is a bovine herd that wouldn't know a good cartridge if they were shot in the ass with it, plus shenanigans and corporate conspiracy: The firearms chambering equivalent of the 200-mpg carburetor that runs on seawater.
Old Mauser pocket pistols, the HSc and the 1914 and its ilk, didn't have external slide catches. Instead the slide would lock to the rear based on the absence of a cartridge in the feedway and would be released to go forward by the insertion of the magazine. Awesome! It will lock back with or without an empty mag in the gun, and there's no external lever to snag on things and you don't even have to remember an extra step to get the gun back into action after reloading!
You also need to have an empty magazine handy to field strip or reassemble the pistol, plus if you're having difficulties getting the fershlugginer thing back together again you suddenly find yourself pining for an easily operable external slide stop whose operating status is clearly visible to the eye. Maybe those unhip regular external slide stops have something to recommend them after all.
Oh, and see if you can guess how I've been spending my morning... (I am happy to say I got it all figured out and wound up not even having to hit anything with a hammer, although I was sorely tempted to give Oberndorf's finest a few gratuitous whacks anyway by the time all was said and done.)