Any reference to the "specified area" is also outdated.
What is the present situation with Thames and Heathrow? Are they ever bandboxed? If so, would it not be better if we were all on the same frequency?
Almost always bandboxed and cross coupled at the moment as the weather is not great and the staffing precludes splitting the freqs. It is best to have the SVFR traffic on 125.625 and Thames on 132.7 so that IF the roles are split it just needs Thames to deselect SVFR. You should hear all transmissions and aircraft replies irrespective of the freq you are on.
ST - 'bout time you came to the new gaff mate.