Had an interesting thought - has anyone tried to access this lounge yet arriving QR with an onward J connection on a oneworld partner? I flew DOH-CDG-LHR on QR/BA a few weeks ago and thinking about the layout of the terminal, I would have been able to get back to the QR lounge on arrival if I wanted rather than heading straight to T3 for the CX lounge. If the access rules are the same as LHR/BKK then a BA J boarding pass should get you in, no? Will try it next month when I do DOH-CDG-LHR again.