Not EDC anymore.
My fault for a soft, well worn leather mag pouch, but while back I lost one of my extinct mags, somehow slipped out while seated somewhere and backtracked to never finding it. I find tension fit Kydex a bit fiddly to manipulate at times, but an overlay snap cover is better if that snap holds up.
12+1 seems plenty if accuracy and conditions are ideal, say against 2-3 armed assailants. Mathematically that’s around 4 rounds per assailant. But even 1 round is too much for the social justice legal system to comprehend as necessary.
Traveling, I think having an extra or two on hand to off-carry, should there be a range nearby and have some spare time.