Originally Posted by
mikeyfly
This is interesting. This Forum tends to claim Op Up are only ever issued when a cabin rolls forwards
I got the impression that although this is sometimes said, it is shorthand for a situation that
mostly true rather than universally so. Previous discussion of the Discretionary Upgrade Tool has mentioned that occasional space-available upgrades are possible - as
jackcarr eloquently puts it, the carrot-dangling part of the DUT algorithm.
I think the reason people say BA only upgrades as needed is to distinguish from the policies of e.g. US carriers which will fill their premium cabins with space-available status upgrades.