Likewise, bring on the Farnborough LARS!!
Mike, Unfortunately I can't see how this will alleviate the problem in question. The Farnborough LARS airspace doesn't actually cover the Luton area!
I fly GA; I believe that better education of some GA pilots would help. Some don't listen out before transmitting their request and obviously don't have a plan B. I do try to listen out to 129.55 for a while and assess what's going on before asking for a service; I often take a longer route round the airspace if it seems that the controller is maxing out (like this afternoon, for example). Sometimes it seems pointless even trying to join the "Standby, I'll get back to you" crowd. That benefits two ways; I don't add to the general melee and ATC don't delay me! If it quietens down a little while plan B is under way I'll give a relevant call announcing my presence for the benefit of other pilots in the area.