This question is prompted by my having just looked at the Mozambique thread. When the assassin shoots the cop from a surrender position, he waits until the cop slightly turns his head and looks away. Because of that opportunity--well, because of that, and because he's kind of quick--he's able to shoot even though the cop has his gun on him already.
So here's my question. At some point, I don't remember where or when, I read an article or watched a video or something that went into some explanations about how much the guy with the drop needs to turn his head away before a similarly quick person could theoretically get his gun into play. Does that question make sense?
Searches here and on bing have been thoroughly unproductive.
Does that ring any bells for anyone? And if so, could you remind me of what it was? And, if you have positive or negative thoughts about it, please feel free to include them!