its about 1400 £ or 800 one way (plus taxes etc); so about 2100 $ r/t, 1200 one way - i remember getting UAL z fares that low a few years ago.

Weird that it says fare basis, z, but then the M later. When i get to the booking/payment site, it says Z again, and business.

Has anyone had experience with those NOT being honored after choosing seats?

I've seen before that continental has cheaper biz fares but i haven't booked them before; frankly i had moved to NZ and BA for my trips to London to avoid the old C seats, but BA (tat i'm on this time) can't seem to get their act together in the deicing department and have horrible delays and cancellations - so I'll settle for an old style C this time on the 777 as long as i get back.