Master Wei-Chung Lin, a disciple of the Yizungyue School and the Chief Instructor of the Chinese Taoist Martial Arts Association in Skokie Illinois, demonstrates a Cheng style Baguazhang form and its applications.
http://www.youtube.com/watch?v=jAq1WA_RCiI
http://www.youtube.com/watch?v=jAq1WA_RCiI