Actually I used LHR T3 last month and cleared immigration and picked up bags in approx 40 mins, hell of a lot better than the 1.5 hrs it took to clear in JFK! I also used BHX in aug, I had my bag and was off in about 25 mins.
Even after your hour long wait in the queue in BRS you still have to wait another hour for your bags!! why rush things maaaaaaaaaaaan, this is the west country, as the spanish would say 'Manyana'!! or the Jamaicans would say 'just chill man' or as us lot would say 'take your time my babers' hmmmm