Am I correct in thinking that if you are streamlined to do tower, you do the APR course as well, or has that now been dropped?
Until recently, or possibly it is now still the case, NATS required non state joiners at airfields to have ADC and APR so that they could be posted to TC to do the approach radar function, if and where it was applicable.
I also believe that those streamed to do Area will no longer do the formal ADC rating, which is a shame, cos those who get chopped from area will no longer have any prospect of employment outside NATS.