It depends on the controller and the situation....
IMO if the PAR or indeed SRA was requested by an ATC unit "
for controller training/validation/consolidation/currency" then usually we like to do the whole thing. We will only need to know if you
don't get visual by your declared DH/DA so we send you round.
However if it was a run-of the mill GCA and you're visual and want to continue as so then let us know. We get a lot of civil traffic here so the standard for us if you call visual is to say "
Continue Visually, you have been cleared to Land, remain this frequency"
2. On the frequency question, for our airfield we actually say "
...London Control, Freq 123.45, When Advised" as part of our departure clearance. This is mainly because we have to ensure that the SID is being followed before releasing the aircraft to the next agency (regardless of whether it's going to LACC or the Deps controller downstairs)
Clear as mud....
