Thanks for that, I have just been looking at loading on SIA from LHR/SIN/PER and yikes

they are very very full.
Also given the discussions here, I doubt that other *G are anywhere at all near the top for operational upgrades on SIA, so I may look at loadings on other flights.
As you say in Y many airlines are similar and for me having an empty seat next to me is more important than food or a personal Tv screen.
Mark