OP's Question: What do you guys do when your CCW malfunctions?
Do you swap it out with the next gun you're adequate with?
Do you not carry it until and X amount of rounds are run through it to ensure it's good to go?
Yes, without a doubt. Something has to be done, and you mentioned two possibilities(one being a temporary solution). As for the permanent solution: one needs to be confident too, so it might take more than putting a bunch of rounds thru it after the issue. Using the same ammo that is working can add confidence and closure, but cleaning & disassembly are also examples of other numerous possibilities.
NRA Distinguished Life Member
"Abraham Lincoln freed all men, but Sam Colt made them all equal." (post Civil War slogan)