I have been teaching Tai Chi in Victoria since 1978. My Tai Chi teacher was Master Raymond Chung. This master was still teaching at age 105. Master Raymond Chung taught a variety of Tai Chi forms, the main one being the 108 movement Yang style Tai Chi form. He also taught the pushing hands, the 88 movement two people applications form and various weapons.
Master Raymond Chung was a very kind and patient master. He was always for peace and not martial arts fighting or competition. The pushing hands and applications are not fighting, they are cooperative partner exercises.