In this case, 公开A组 having 25% 大师, i.e. 5 players.
to encourage more players to join in future years, may be .......
SIXGA could consider to give special prizes to the 5 players who join in the last 5 years since 2005 :
黄俊铭
康德荣
黄荣岳
洪天瑞
倪福良
(by the way, I do not have the official list, just hear-say.)