I have taken SQ322 and SQ321 twice in the past and were oversold in all classes the times I have taken them. I'm going to be on SQ322 once again in June and I snagged a seat in advance so as to avoid being left out.
Next week for my SQ319, flight looks wide open and cross my fingers that my colleague and I will be the only passengers in the F cabin for the ultimate experience. It has never happened before for us.!