Isn't it amazing how quickly that "internal dialog" takes place, especially when the adrenaline kicks in?...all that in a fraction of a second, it seems.
When I think about it I'm still surprised how quickly I made the move to grab my gun from under my heavy winter coat. Were you able to grip your gun quickly?
I never spent a ton of time just practicing drawing while CC, but I'm glad I did at least a little. I know it paid off.