The owner, Murray Law, is an absolute nutter apparently. Hates pilots, questions every penny on every receipt. The Gulfstreams do what they were designed for - lots of long sectors. Owned by Indian steel magnate, Irish financier/hotelier and a Saudi owned one.
Challenger owned by an Aussie and spends a lot of time in Australia (during our winter).
That's all I know.
Woldn't bother yourself.
Janusz