I have a return flight from Syd to Hkg coming up soon.

Availability for each flight according to Carlson Wagonlit tool:

Syd-Hkg F4 A4 J0 C0 D0 S4 Y7 B0 H4 Q0 M4 N4 K4 L0 V4 O4 (Boeing 744)
Hkg-Syd J4 C4 D4 S4 Y7 B7 H4 Q4 M4 N4 K4 L4 V4 O4 (Airbus A33)


None of the other flights show availability above 4 in J, but Y is 7

I've put in for an upgrade from Y to J for the return journey ... just wondering what to make of these stats.

I thought that if a QF plane had less than 7 seats left the number would be displayed, otherwise 7 would be displayed... is the limit 4 for J and F seats??? Wouldn't have thought that each flight would have exactly 4 seats in J and F left.