Impressed with Chan Heung's martial arts abilities Li Yau-San suggested he then train with a Shaolin monk called Choy Fook (Chinese: 蔡褔) to learn Choy Gar, a northern Shaolin style, as well as Chinese medicine and other Shaolin techniques. Choy Fook had learned his martial arts from Jue Yuan Monk (Chinese: 李友山), Yi Guan Monk (Chinese: 一贯禅师), Li Sou (Chinese: 李叟), Bai Yu Feng (Chinese: 白玉峰) and Cai Jiu Yi (Chinese: 蔡九仪). There is some speculation that Choy Fook also studied under Choy Gau Yee (Chinese: 蔡九儀), the founder of Choy Gar.