Originally Posted by
jerry a. laska
The same city pairs same direction rule has been around at least since 2001
Incorrect for XONEX.
XONEWCX has this city pair restriction since its inception.
IMHO, this restriction were introduced because XONEWCX didn't have the upper limit of the number of segments at that time.
I got over 20 segments DONEWC3 issued at that era.
For XONEX, I included HKG-NRT-HKG-NRT-HKG in my DONE3 in 2009.
Therefore, this city pair restriction has been introduced after that for XONEX.