[NM]

I think I did pretty well on my recent DONE4. Certainly not optimised, but did hit all the places I needed to be in a 3 week timeframe:

QF FF Points earned: 0
QF FF Points spent: 60,000
QF SC earned: 0
QF UC spent: 3

AA EQP Earned: 59,588
AA Miles Earned: 98,472
AA UC Earned: 12 (just 669 miles short of 16)

All bar one flight (AA71 FRA-DFW) was in the highest cabin class on the aircraft, including QF F on MEL-LHR and HKG-MEL, and CX F on LAX-HKG.

So it all depends on what one is looking for whan optimising a xONEx itinerary.