Maligno remember that cadets get their staff number the before they go off doing their basic traning but seniority only starts when they start the conversion course so he would have started some 4 years later than his staff number indicates. Also bear in mind that as a cadet they dont fly a lot of hours the first few years during training so say 6000 in the first 10 is probably not far off then a year as a captain to make it 7000