So, long time stalk reader here. I don't fly that much (sadly no company dime), but managed to go gold during that wonderful 3xtier&bonus points campaign, which we all probably expect to see every year
Some questions, Dubai upgrade didn't clear for me, so I've still got some vouchers to burn. Singapore upgrade with vouchers is probably even harder to succeed?

I think I've read somewhere that if you are AYgold (or maybe it is the OWS status), you can select PE on QR flights for free?
If that is true, then it's probably wiser to take a cheaper QR flight Hel-Sin, than trying to get an upgrade on AY flight?