After travel and exchanges were permitted between Taiwan and the PRC in 1989, some almanac writers went back to the mainland to find the direct first-born male descendant to formally become accepted as a disciple. In the home of Hong Yongqing in Fujian, Huang saw a disciple's oath taken by Tsai Ping-chun of Nantou County in Taiwan.
「台灣大部份是三房傳下來的，兩岸開放後，有些通書編印者就回大陸找長房拜師」，黃一農曾在洪潮和長房家中，看到台灣南投蔡炳圳的拜師帖。