Well I followed LuftWolf's advice and reran a number of times a sub v ffg scenario with no Wakehoming torps, comparing results both with and without the Nixie. Though far from exhaustive, initial observations seem to bear out that the nixie of ownship does have an effect on the torpedoes. In each case I took no evasive action, steaming in a straight line at 10 knots, sometimes towing the nixie, sometimes not. In all cases the hostile sub fired a spread of 4 torpedos at me. In all cases they hit and destroyed me (not surprising considering my course and speed

). Closely observing the replays did show a difference in torpedo tracks if the nixie was towed, with one or 2 of the 4 torpedos diverting towards the rear of the ffg, and all heading straight for the ffg when no nixie. This puts my suspicions of a bug pretty much to rest. I only ran a small number of tests, not enough for any useful statistical analysis, just enough to observe a difference in behaviour.
Regards