HK is doing this all the way, SG should adopt this system asap没记错的话，香港连续两年不参加A组就自动退回B组。
新加坡可以从3到4年开始实行。即A组选手必须在3到4年中参加一个A组。
现在太多人很多很多年没有出现了，都不认识了，还以为是新秀。
HK implements it in two phases ......
No 1 --- not playing for two (?) years downgrade
then
a few years later, implements
No 2 --- playing but not up to certain standard, also downgrade
may be, someone can talk to 范永康 to find out more .....
Huasing Association 1999 - 2013