I still reckon you should have dropped flour bags - at least - on the Mercedes hut !
I'm sure the famous German sense of humour would appreciate it, after all they're operating on a British WW2 Fighter & Bomber base...
My boat has a chemical loo which is available 'at your disposal' - may need some separation trials - ( I can think of a target or two close by worth risking, NOT on the 'field ) though I have to agree with Jeremy Clarkson, the Merc/Mclaren makes a wonderful sound and did remind me of a Merlin, albeit at higher rev's.
Regards to all at Brooklands.