Armin K.
I really need to draw your attention to Marco Lück's channel and courses (in German and English). I was maybe a little skeptical at first, but out of curiosity, I just ordered his online course on the large topic of Yi Jin Jing and what should I say, what he shows and writes has a hand and foot. Super legit and done very professionally. Anyone with a serious interest should join his training!
Armin K. from Germany