Hey Bloggs,
I suspect what you say is correct. How ever if we literally take "radar vectoring" to mean the same as "Surveillance service", and are tracking under our own steam then we would not currently be being radar vectored, however we may be under surveillance??
A slight but definite difference.
I take it from the AIP that if we are
identified, we cannot descend below last assigned altitude until we are within circling area, established on final etc
It should not be so grey