BB, on one Groupex we had a tone malfunction - I switched it ON at bomb release. We claimed a malfunction and said the release w as X second earlier. As you know, scores were not passed to the aircraft in flight .
We pondered a while and on passing Ouston a second time amended our guess.
When we landed the debrief team asked why we had two scores - they didn't say what they were. We bluffed and it seemed it worked. The first guess was 1600 off yards. The second around 400. I think BS accounted for quite a number of good scores.