So, here's a question for all you GMs out there... how grimdark is your campaign? It struck me that, unlike a lot of the other Warhammer 40K situations, Rogue Trader is unique in that your characters have money, fame and freedom. It's completely possible that the crew actually lives an enjoyable life, full of adventure, humor, wit and success. So, how dark is your campaign, with 1 being GRIMDARK and 10 being "Flitting about the galaxy living the high life".
Mine currently rates at about a 7, at the moment. Plenty of humor, but high stakes at the same time.