Originally Posted by SQveteran
Yes, the 'Royal Wave' (or nod) works to. I had a situation in MNL once where the counter ran out of red first class priority tags and tagged my bag with a blue job instead. My bag was still first out upon arrival at Changi. Admittedly, this in its own right is not proof of substitute value for the PPS tag - especially since on many occasions i've witnessed non priority luggage off loaded before priority luggage.
I am venturing a
guess that the Raffles priority tag did it for you that time. SIN has not exactly always been orderly when it comes to Solitaire bags first then First then Raffles....
I am really doubtful the baggage handlers pay attention to the plastic card tags as well.
But hey, this is just a guess from me, the skeptical
StarG.