The CRCA's international popularity is a result of many years of hard work by Randy, carrying out the teachings of Wing Chun that he received from Sifu George Yau, Sifu Augustine Fong (America) and Sifu Ho Kam Ming (Hong Hong).

Randy has worked with world-famous celebrities such as Al Pacino, Andy Garcia and Antonio Banderas. He has worked as a bodyguard for such stars as Steven Seagal, Eric Clapton, Phil Collins and U2.

Students meet during seminars, courses and private meetings. Sifu Williams has the world largest selection of Wing Chun Gung Fu instructional books, videos and articles about Wing Chun.