The "Club"
Thanks Whopity for your various inputs, I am beginning to think it is probably a moot point.
Reminds me of once when I had occasion to attend a meeting at the Home Office and when asking about the whereabouts of the meeting room I was directed through various corridors that are colour coded and was amused to pass through the Grey Area on my way.
When it comes to private flight arrangements perhaps grey is the best colour after all!