Yam only finished grade school while Loong did not finish high school when they had roles like Jia Baoyu in 1943 and 1964 respectively. In 1964, Yam taught Loong, age 20 with one year of formal training, line by line and word by word while there is no information as to how Yam came to be in that role so well received in Macau. Neither of them ever claimed to be child prodigy. They both wrote for publications and are known most for their roles as romantic scholars, well-educated and fluent in literature. Contemporary performers benefiting from Yam-Loong perspiration take it that they can just clock in/clock out and produce what is now known as poor quality stencil and the demise of such repertoire once propped up the Cantonese opera community for five decades.