250kt or 550kt - who cares?
Once you are vectoring the aircraft you can either introduce speed control, moniter the speed using the SSR readout,(yes - we do have that facility fellas), and if they are naughty enough not to comply - send 'em to the back of the stack.
When the CAA introduced the 250kt speed limit, they forgot to commission the speed cameras to enforce it.
Sorry Avalon, I've got better things to do whilst controlling than to be a policeman, but I know where you live!
