Well.. I'm all ears.
I've found BR67/68 can suffer from luggage prioritisation problems. The "priority" tags (PLs/Diamonds) seem OK but I got quite used to the "Evergreen Club" luggage on LHR-TPE coming out AFTER the non-priority stuff that had started in BKK or transferred to BKK.
There was a time that golds got a proper "priority" tag and LHR continued this practice for a long time after it was officially stopped.