Not long afterwards, he started drawing Old Master Q and Big Potato under the pseudonym Wong Chak. Originally he planned to do this only twice before quitting; he had no idea that it would become such a hit. He stuck to it and continues to this day.
不久又隨手改以「王澤」為筆名，畫了「老夫子」、「大蕃薯」，原本打算用兩次就打住，沒有想到大受歡迎、欲罷不能，竟一直沿用至今。