Unfortunately, most publicly taught martial arts are not well-taught. I discovered this after a few years of Karate and Judo, realizing that although I was considered pretty good, I would still not use those against an opponent.
I learned Katas in Karate and a bit in Judo, and immediately found that it was unlikely that things would execute in a manner that perfectly allowed these Katas to execute. I'm fine with learning Karate, but not through Katas (it could just be that my brain doesn't absorb something like that well). I consider adaption not to be a predetermined string of movies, like the Katas were.
Sounds good to me. I used to take gymnastics, but didn't have the patience to keep going to the gym. I continue to feel that the best way to learn is learning it on your own, because then the system is adapted to the way you learn best. Not a lot of teachers do this either.

I've never heard of some "no-touch chi knock down/out". That's.. uhm.. wow. I'm starting to see why the martial arts system has been going to hell around the edges. However, I know Chi to be controlling energy inside your body, and to focus it to specific areas to strengthen them.
I don't mean to fully remove either. However, I have managed to control both to some degree. By controlling fear, I meant to keep it out of your body (restrain it to your mind. Vladimir Vasiliev has a knife disarmament video, which says you must keep fear out of your body to remain fluid/limber. Sounds right to me), and keep it from affecting your judgment. By controlling pain, I mean to keep lesser degrees of pain from triggering automatic impulses. I've had some success with both of these.
I just meant weapons that are used today at close range. Not necessarily specific ones. For instance, a knife, a baseball bat, and a chain would probably cover the general feeling for most of the weapons that would be realistically used. In Canada, I'd say the most common weapon's probably a knife.
I live in Canada, which is like the "small town" of the world to begin with. Aside from that, I live in a small town. It's an hour away from Toronto, though. My problem is: I've tried a number of schools, as I mentioned before, but I still feel that although the instructors are quite proficient, they are not teaching the students properly. No instructor seems to understand what made them good, and the students are left repeating a few moves. In Judo, this is bad enough, because without some sort of offense training, you will inevitably fail (unless it's combined with another art, which could make it quite powerful). If you're not taught in some sort of realistic environment (like sparring), I've found my brain doesn't absorb very much.
On the other hand, if I personally train myself, and let myself imagine being in a realistic environment, and understand why each move works, then I do get some results.