Slightly off thread. However in about 1963/4 at 229 OCU Chivenor we did some night formation training in Hunters. Bear in mind that the intention for this unnatural aviation was for day fighters to take off before dawn or land after dusk. The Hunter had neither resin lights, as some Meteors had, or the bright/dim facility for the nav lights. Or landing/taxy lights! In formation the lead aircraft's nav lights would dazzle no 2. ( Never flew more than a pair ) We found that the best way to do it was for the lead to turn off his nav lights and the no 2's would then illuminate the lead's aircraft. It worked OK but useless if you went through cloud.
I only used this technique once in anger when being escorted by a Canberra whilst ferrying a Hunter to Singapore. Having asked the Akrotiri station nav what time it would be dark in Teheran he obviously got it wrong as we flew east and the last hour of the flight was in darkenss.