I've studied this art for a little while myself. It is excellent for the spirit, although, I don't believe it to be of MUCH use in combat, except where muscle is pitted against muscle (which shouldn't happen, in my opinion). I have used examples in my own power, and they have worked, much to my surprise...for example, the "unbendable arm". You use no muscle, yet your arm is unbendable. Also, the ring fingers...you touch your index finger and your thumb, and, without muscle, no one can pull them apart. interesting stuff, even if it isn't useful.