Originally Posted by number_6
and it will be segregated upon arrival (each airport does this differently, how EDI does it I don't know, but often it means your bag will take an hour or two to arrive, after all the other bags). A quaint system (I suppose it is intended to justify having customs agents at airports that don't have any international flights, as all UK airports have to be ready to process customs for inbound international pax).
From my experience, the bags come off just as quickly on all the flights I've made above. I was in CX F though on most of those flights, and connected to BA C for the intra-European flight. There was no long wait - my suitcase was always one of the first few to come off the conveyor belt.