Morning all

I have to take my first trip to Sydney, Australia next month (either the 3rd or 4th week of Feb) for work meetings. Corporate travel policy dictates Premium Economy for trips > 6 hours, and I'm a BAEC Gold card holder with around 100k Avios. I can either fly from LHR or BHX.

I've looked at the 'book & upgrade with Avios' option on the BA website, and can't find any availability for an official upgrade, so I'm looking for advice as to the best PE cabin for me to spend the best part of a day in! To add into the mix, I'm pretty tall (6 ft 6 inches) and wide, so seat comfort and especially legroom are both important.

I've flown long haul in BA PE before and it was fine, but wondered if the alternatives are superior? Earning tier points (plus the very slim chance of a potential upgrade!) are more important than Avios earnings on this trip. Finally, is it wise to break up the legs with an overnighter (i.e. a night in Singapore/HK) or is it do-able back-to-back?

Anyone with recent experience able to offer some advice?

Many thanks!