According to Cheung, it was from 1954 to 1958 that he was a live-in student of Yip Man and inherited the complete system of Traditional Wing Chun Kung Fu.
According to Cheung, it was from 1954 to 1958 that he trained intermittently under Yip Man. He claims to have been the only student of Yim Man to inherit the complete system of Traditional Wing Chun Kung Fu.