I find it really interesting that in Tai Chi fighting, the 4 moves cai, lie, zhou and kao are used so frequently, and yet these 4 moves are nowhere to be found in the Tai Chi form. (Please note that I refer to the MOVES, but not the concepts explained in the bamen 8 doors theorey of Tai Chi Quan).
The best examples of the frequent use of these moves is in the Tai Chi San Shou (fighting set) sequences out there. In all the variations I've seen, the 4 moves (cai, lie, zhou and kao) are used so often, and rightly so, since there are so effective. I find myself using kao and zhou a lot, but perhaps most surprisingly, using lie the most.
I've done a lot of research into different forms and there don't appear to be many forms out there that incorporate these moves into the sequence. I've seen certain Yang Styles that just stick in kao in the middle of the sequence, typically after Ti Shou Shang Shi (Raise Hands to the Up Posture). I have, however, come across a move called Loong Hui Tou (Dragon Returns it's Head, or something similar in meaning) which the last two sections look like Zhou and Kao. It's quite a long move, consisting of 4 parts, much like Lan Que Wei (Grasp Sparrow's Tail) which consists of Peng, Lu, Ji and An. Perhaps this move Loong Hui Tou was actually supposed to consist of these four moves, cai, lie, zhou and kao!
Any comments about the 4 moves? Or anyone who knows of a form that contains these 4 moves? Or any knowledge about Loong Hui Tou? Anyone?