BA site shows wide open availability in F from YYZ or JFK to HKG in next 2 weeks but YVR has only J or none. I only found 1 day has F.

It is summer time, but the F award seats are 2 to 4 in some flights. I dont recall this in the past.

I seem to recall there is a thread about which flight from YYZ is better, but I could not turn it up using search.

Can someone point the way to the discussion of the 2 YYZ-HKG flights, especial in F?