Good point, John.
Yeah, there are several different ones that I have been taught. Not the wave-one, though, not as a technique. I´ll add that.
There are many of these. An important one to keep for health is to keep your focal adjustment working. It stiffens with age. If you practice it you will mitigate that. Several of the techniques are also very practically useful in modern day combat or fighting.
And I think you are sadly right about lost practices. Just the amount of practices I have heard about that aren´t around anymore forces you to look at the previous generations of CMA and IMA in a different light. Picture the sheer knowledge that they might have had and that went into their styles and their power and we have lost now.
D.
Sarcasm. Oh yeah, like that´ll work.