Greetings..
I once observed a golfer's swing and noted some extraordinary spiral elements... good body mechanics are not unique to CMA.. Laughing Cow brings up a most interesting point.. it really isn't important who invented what or it's authenticity.. rather does it "work".. tradition can be profound or it can be a stagnant road-block. Internal vs. external arguements are roadblocks, distracting us from pursuit of what "works".. I am willing to examine many sources to add even one valid technique to my own personal body of experience, the source is not as important as its practicality.. that being said, i do try to keep additions to my repertoire consistent with CMA/CIMA values..
My long-time study of Taoist philosophy suggests that too much concern with the "names" of things degrades the personal experience of the thing itself.. meridians/channels/chakras, Yang/Chen, internal/external, etc... are not nearly as important as the experience they represent.. my personal choice is to describe these experiences with common english (western) concepts which are much more meaningfull to my students.. sure we associate these experiences with their "traditional" names, but we try not to get lost in vague translations.. we simply re-describe the experience in the context most familiar to our current experience..
Just another perspective, Be well..
TaiChiBob.. "the teacher that is not also a student is neither"