I'm in the F lounge at JFK right now waiting to depart on CX 831 in F. I've had to change the date of this flight numerous times over the last few weeks and have had no problem in general getting A inventory. You will need some flexibility though as some days do show A0 for all three flights (even F0), but I would contend the perceived paucity of A seats on the non-stops is belied by my recent experience. I've also been doing some checks for further out in the year for my next AONE4, and getting A inventory is generally not a problem. That third daily flight has improved matters, the capacity reduction in F notwithstanding.