Hewy gunsite: I apologize if my comments are not correctly directed to your reply but when you talk 100 ft or 200 ft you are talking about distances that firstly can be mitigated by moving, running, hiding etc and not by standing there with drawn gun and deciding whether it is "passive" or "real". You are then going to decide whether the threat is, indeed, life threatening?--at that distance? Something just sounds wrong here--I cannot see your firearm out of your holster ready to be fired. You'd better hope that a jury would see this differently. Sorry if I am misinterpreting but I've got a problem with over 100 ft and thinking I am in that kind of danger when I can be yelling, moving, running, hiding, etc etc. I can appreciate having your "awareness button" on but that is about it.
I'm not saying to take a shot 100-200 feet... but be aware, assess, and eyeball not in a paranoid or panic mode, but simply awareness mode. Many times over the years and still today when i'm in a restaurant, shopping, Malls, or anywhere in public with or without family, I"M ALWAYS ASSESSING, I assess in a low key uneventful way, its in my blood, its who i am, its what i've been, its like a 6th sense. I watch people (close/far), their moves, body language, hands, I watch their watching, and so on.
Example...
Always play defense... i can't name every scenario possible, but take the concept and incorporated to other situation. If i'm at the mall and walking/approaching my car, i'm eyeballing all the way, if i was standing out side my car hanging out waiting for my wife and a target starts walking towards me and i'm now in his path. At 150 feet from me i may have doubt, so i would i would move out of his pathway (passively), at some point if his intentions are no good, he'll have to commit his aggression to my altered position, and at this point i make my next move. My direction would commit him where i'm now his target.
The key to my statement is DOUBT, everyone has their own perception of a potential threat that are not defined, and there're many variables that would determined that. I would suggest if at all possible, DO NOT SHOOT ANYONE... stay out of court... do not put yourself in a position where you'll need a lawyer... If you give me a choice to shoot or run-away (escape)... i'd runaway every-time. (call 911)
If you go to court, even if your right/justified, you can be wrong, if your round misses or penetrates someone, or ricochets and hits someone, YOU OWN IT, YOUR LIBEL.
At some point you have to realize you can't be ready each and every-time, everyday, every minute of the day, and always be right. You try to maximize your protection and minimize your dangers and that's how should walk through life.
Let me end by saying, if your in fear of your life and left no choice... YOU SHOOT, and worry about everything else later.
The more training you get, the more you learn, the more you know, the more your able to learn.
I know sometimes thoughts and ideas are difficult to put on paper, so if you/anyone needs to ask/clear something up in regards to my post... feel free.
Good Luck