The uppy-downy bits(UDB) on the tail were part of the AAR mod in 82, compensating for the extra lateral area of the probe I suppose. On the original mod the UDB were spare VHF aerials that we had lying around!
To an earlier poster I dont remember min crew MAD comps but on the OCU we always had about 20POB and did a comp on every tactical sortie.
CS (CamelSpotter in this case)