Wubblestrim,you are still trying to muddy the water. The
GE 777-200's to be specific, are not long range aircraft, so do not fly to SIN. There is no dedicated overhead rest area on those aircraft so a curtained off area with one row of three seats is allocated. Flight crew frequently upgrade themselves from the 11K Club seat on three man pilot sectors, to a First class seat.
Currently on non stop flights to SIN and back, on both 747's the flight crew compliment is four, two Captains and two F/O's. These sectors could easily be accomplished with just one Captain and two F/O's. This alone would save BA at least £3m a year on the SIN/LHR sectors. Giving up the two Club seats as well would give a total saving of around £5.5m a year. More than four times the amount BA may save by replacing Legacy cabin crew on the route.
BA has been held to ransom for too long over these costly flight crew perks, profitability on routes should not be subject to archaic union diktats.