My query was really why ATC offer a TS as a first option and not a DS - particularly when they are providing Radar Control to most other traffic on frequency and will to us within a couple of mins too.
Because RCS has the benefit of controlled airspace! And with the main function being to provide that service in CAS, one is not going to fall over oneself to take on a workload and responsibility for which there might not be the capacity.
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