Originally Posted by
LeadSled
It goes without saying, but few domestic pilots in Australia accept it, but providing more than the required resources (ie C over D rather than E over D) is economic waste, as the separation assurance standard is already so high, the probability is so low, that the additional resources do not decrease the collision risk probability. C over D means you are increasing ATC resources as the risk decrease, ie: the traffic spreads out away from an airfield.
But they do give a certain cohort of pilots the warm and fuzzies.
How does "E" require fewer resources than "C"? Particularly when the vast majority of traffic using it is IFR. You still need a controller sitting in the seat. The economic waste is precisely zero.