7+2太少，9+2太多。7轮定前4，很不准确；但9+2=11轮，棋手时间又难以配合。无可奈何的事情。
after consider all factors, 8 + 1 should be better than 7 + 2, any view ?
this is to prevent those definitely in Top 4 after Round 6 not putting in effort in Round 7 ....
8 + 1 will decide the ranking positions for only two placings ..., i.e.
1 or 2
3 or 4
5 or 6
7 or 8
etc ...
Huasing Association 1999 - 2013