My response would be immediate, agressive, and violent. Obviously I'm not talking about beating somebody. I'm talking about incapacitation. I cannot say what the exact response would be as situation dictates.
I have often wondered about other people that carry. I'm sure most spend as much time at the range as they can but what about unarmed combat? How many people on here routinely practice whatever form of combatives they choose? I think this is something most people overlook. I know for a fact how physically and emotionally draining unarmed combat can be. It's not like in the movies where the hero dukes it out for minutes. You're lucky to get one minute of productive energy in a fight. You have to condition yourself for the possibility that you will be unable to utilize your primary weapon.
I too use the elbow check. My elbow rarely leaves that position when I am out.