I shot USPSA extensively. I still carry hot.
That's nice. I don't really mind if you carry hot. I do to. I'm just bugged by the people who insist you're going to die racking the slide when you can get a round off in barely over a second without one in the chamber. It's not the way you carry, it's the way you train.
IMO while "train more" is an excellent point, it doesn't invalidate the fact that needing to rack the slide in an emergency situation is still a bad idea.
Objectively with the same amount of training (aka removing training as a variable) one in the chamber is faster than one not.
But it doesn't matter, because it's still not fast enough to draw from the drop, and if you're not drawing from the drop then you have the time to rack the slide.
