Alpha India, you are correct with those figures.
The 28K figure you mentioned is as far as I'm aware for non TR pilots, as BA pay for this with no bond at all, just a reduced salary. Its about as low as first jet job salaries tend to be, with the very BAish attitude that no bond is required because nobody would want to leave BA! Im not sure how long one would stay on this reduced salary, because you're right, DEFOs start on 44k.
Im sure you know though that the BA expenses package is one of the best in the business, so a low hours chap who rolls in on that cadet salary is still likely to be as well off as those who start off with most other airlines.
Hope this helps.