Aside from the explosion of the availability of instructional martial arts cassettes and dvds in the last 25 years and now internet courses, the same period has seen the proliferation of workshops and seminars. The good side of this is that practitioners can spend an intensive weekend or week studying with like-minded students under a famous instructor with an international following. Deepening your understanding or contrasting how your style diffes from what is being shown can be very useful for an experienced practitioner. The bad side of this is that some participants will inevitably confuse a superficial familiarity with the material with competence. This can affect all levels of attendees and it is not uncommon to find teachers incorporating new material into their own curriculums based solely on what they were able to glean from a few hours or days with a master practitioner.
43+ Years of Experience Training in the Chinese martial arts; 33+ years experience teaching taijiquan and 24+ years experience teaching baguazhang