@ Pr00ne
during my time in FEAF, our task was confronting the Indonesians in Sumatra and North Borneo and also secondarily being sufficiently nuke-proficient if the Big Northern Power needed a spot of deterring; we didn't try to compete with "other theatres" - with all the different attack profiles that kept us busy maintaining proficiency.
The SFOM fixed ring sight was for the SNEB rockets and would have been very effective if the "opposition" tried to invade by day with hordes of small boats, for example, or against oil installations which were in our target study briefs. The Indonesians' one attempt at a night (?) airborne incursion using one of their C-130s was a complete failure, but the C-inC did have the rare pleasure (for a very senior officer) of watching 20 Sqn Hunters do their stuff very effectively (using the 60-lb rockets as used by Tempests and Beaufighters in the "events" of 20 years before, as well as their mighty Aden guns).
BTW, one result of "Confronation" was that, for the first time, most if not all of North Borneo was accurately mapped by PR7s - previous surveys along the hard-to-reach mountain areas had been done by oil companies using different base-lines, and the position of, e.g. a mountain, could be on "our" side for each of the opposing forces the Gurkhas loved that !
Incidentally, our attack speed at low level was 450 knots ...