Thanks. Had success J to F as WP MEL-LHR return in 2017. Y to J to HKG but not to return flight as WP in 2016 and MEL-DRW-LHR Flex Y to J return as SG last year. Also a few return SYD-SFO upgrades one from Y and the other from premium economy with multiple different status levels. So I haven’t applied for too many upgrades, but I have had a good strike rate.Fingers crossed it comes through.
Although in the period 2015-2020 my strike rate for upgrades QF9/10 & QF1/2 was only 50% as a WP
First time in economy to/from LHR (have done to DXB before on Emirates). Haven’t done premium economy yet.