Since I'm in the land of the free from autos and pumps (for some reason, pump rifles and lever shotguns are fine), I have a basic Stoeger 12 gauge Coach Gun for defense from marauding types.
Even if I could buy a pump now, I'd still keep the double for defense, as it's what I learnt to shoot with, and I know how it works.
I don't see two shots of 00 ready, with another several ready to reload on the stock, to be inadequate.
It's most likely I'll never have to fire more than one shot in an emergency.
I've had to fire one shot in an emergency, and that got the job done.