I think there's some confusion over the various conditions...
"Cooper favored the Colt M1911 and its variants. There are several conditions of readiness in which such a weapon can be carried. Cooper promulgated most of the following terms:
Condition Four: Chamber empty, no magazine, hammer down.
Condition Three: Chamber empty, full magazine in place, hammer down.
Condition Two: A round chambered, full magazine in place, hammer down.
Condition One: A round chambered, full magazine in place, hammer cocked, safety on.
Condition Zero: A round chambered, full magazine in place, hammer cocked, safety off." - Source: Jeff Cooper - The Modern Technique
Although I could, I would NEVER carry in Condition Zero. With the seriously reduced trigger pull, it significantly increases the likelihood of an unintentional discharge while drawing it from my holster.
I could carry it in Condition One, but
that requires an extra step! I can't just draw and fire. I have to draw, thumb off the safety, then fire.
I carry in Condition Two, as I can simply draw and fire. A full trigger pull is required, and because of the firing pin interlock, the firearm won't fire unless the trigger is pulled nearly the full extent of its travel. It's both quite safe and the most readily accessible in Condition Two.
I would only carry in Condition Three if I were travelling as an Air Marshal and thereby required to do so while aboard the aircraft. Since I'm not an Air Marshal...
Condition Four is for people who live in a state controlled by non-gunners, like California. They used to allow OC, but the tails tucked between their legs grew even whiter, and one can't open carry a proper self-defense firearm over there any more.