Tai Chi Sunday Class with Dr. Tony Zayner DN. LAc. Experiments with Kua and Form Applications video Added: Nov 2013 | Last update: Dec 2016 Dr. Tony Zayner DN. LAc. does an experiment with Kua. Bonus Brush Knee Applications. Cheng Man Ching Tags: tai chi tai chi chuan kua Tai Chi Appilications T'ai Chi Ch'uan taiji cheng man ching Dr. Tony Zayner DN LAc.