Correct. His version while at the ex-pats association was no different than his brothers. Chinese learned different material than Vietnamese in beginning. When he went south it changed a bit & the focus was predominately SNT, 36 move dummy & pole. Subsequent generations changed much, adding in 5 animals & Chi Kung. North later added in La Phu Son (a system of bridging from Lo Fu San in China where SPM, White Brow & Dragon came from). Some branches also added in Vietnamese Hung Fist. Very diverse & muddled system now days. My branch comes from north from ex-pats assoc. Last I knew Yuen Chai Wan's son was still alive in south, he does not practice WC.