Wow, great thread!
And now I'm getting even more tangential... but I think it's still related. There is a big difference when you are trying to absolutely guarantee a hit. In the defensive/tactical world, and even in competition, this is obviously a critical skill. However, I am absolutely confident that in training, it is important to push to the point of missing. This is how we learn not just to go faster, but what the limits of our current skills are. At what distance would you take a head shot with a no-shoot behind it? What if you and/or the target were moving?
So, @
markman, I urge you to let your training take you a little farther toward the edges.