I hate to sound picky VS but just to "big up"
the fatigue issues and to reinforce your point about (lack of) time off down route it's not really two days off in BKK/SIN it's two local nights (i.e. one complete day) each way, so on the nine day trip you get a total of two real daylight days off and an assortment of knackering GMT night sectors....
I used to do a lot of these
and whilst they were a good way of packing the work in I used to feel absolutely poleaxed for several days on return to the UK. Ah the glamour of Long Haul Flying.
BTW I, like Carnage, thought we unceremoniously dumped the Thai CC a few years ago.