Jetsetlady,
In my case, my Club Class seat turned into a Economy seat between checking in and boarding. So they must have known at check in what the loading was likely to be.
I haven't had any other real problems with BA, I'm glad to say, although it does seem silly now that we have a policy of 2 + 2 seating in Club Europe to not have the wider seats on the A-C side of the aircraft as we used to do when it was 2+3. I know the 3 seat side isn't flexible, but the 2 seat side stil is....
I do find BA cabin crew and T5 and PHX check-in people the best of all the airlines I've flown, although the suggestion that one flies too much gets worrying when you walk into the lounge and they greet you by name before looking at your ticket! I do have grave doubts about the management that sets inflexible policies, though. So, I am led to understand, do many BA staff.....