The flight Not full.

My brother just flew HKG-KIX. Got upgraded because they said "It's the first flight of the 5th year of your membership".

I remember someone (possibly chiangi ) reporting in other thread that every 5th, 10th year of membership gets complimentary upgrade. I did a search but the function was down.

So take it to your advantage... make sure you have a longhaul on the FIRST flight of your 5th year of membership...

I've gotta start my creative trip planning for next year now... (my 5th year!)