Originally Posted by
Gardyloo
If you use your one transcontinental flight between YVR and JFK instead of SEA-DFW-JFK you can free up a segment later, such as... LHR-YVR-JFK-BDA-MIA-SJO-DFW-HNL-SYD-AKL-MEL-PER-NRT-DEL-HKG-SIN-LHR, adding San Jose Costa Rica. Or, you could restore your BNE flight.
My routing was semi optimized for Qantas Status purposes. You should never fly YVR-JFK on a DONEx when crediting to QF.
And yes, QFF might still make sense when you are back in the UK. You just use the status you have, use up the points you have and then switch back to BA etc.