the back pain "remedy" is just absurd - totally irresponsible, demonstrates a PROFOUND lack of understanding re: etiology, diagnosis, treatment, prognosis, etc.; even from a TCM perspective it's lacking significantly;
but again, I lack diplomacy in this regard...
addendum: there is a lot of "forbidden style" silliness surrounding bok mei; whatever, it's more in context of the politics, not the style itself; CTS studied a lot of BMP directly with and through a senior student of Cheung Lai Chung
this is video of him teaching Mike Parella about 20 yrs. ago
here is a vid of him demoing it at a faster speed as part of another demo, starting at about 00:55 to where he puts on the wires and then starting at about 02:15 until he breaks them; just to give you an idea of what it should look like...