Must say I've had it with Asian/Australian LCC's for now.
Just bought a QF ticket SIN-SYD-SIN for later in the year. Might be a bit more expensive (AUD 750), but non-stop, with minimal hassles. Worth the difference in my opinion, especially as Tiger has now gone to this completely stupid manual seat allocation process, where the first to check in gets the worst seats. Will pay you to check in very late!
FWIW, good old Qantas allocated me seat 33C on both legs, QF 6/5 (I'll take that). Next to the galley, where I'll be requesting another minature of the cab sav from time to time.