I'm booked on a CX segment between HKG and BKK next week (CX 701). The equipment vaires between a 747-400, A-330 and JET (the day I am scheduled to travel) on CX's online schedule/"Airbus jet" on the online booking. Other booking engines (AA, CP and ITN show an A-340 Since J/C class seating starts at row 10, should I wait and not get an assignment and ask for a row 1 or 2 seat at the airport? What's the best way to try to get an upgrade if it is an A-340?