Thanks
If you are correct and BS does mean a worse service, I'd be tempted to ask for a traffic service instead.
But if I ask Luton for a TS for my trip that tracks 1 nm west of their CTR and then beneath their CTA, will they give it? Presumably not, unless they are a bit quiet (11.00 to 15.00 seem to be not too bad) and are feeling helpful.
I suppose one tactic would be to be stay as close as possible to their CAS so that they feel obliged to keep an eye on you just in case you bust it. Not my kind of airmanship though.
At present, I wouldn't dream of asking them for a RIS. I assume that only LARS units offer it - open to correction on that, of course.
Alexa