On a similar vein are the able to now to tell you early enough if your flight is going from T5A or T5B to make the Galleries at T5B worth having...

Every time i have been to T5, It was only been when the flight is abou to start boarding (Goto Gate XXX) that you see whether you are going from 5A or B and hence the lounge in the 5B would seem to be a very under used resource.