I agree Pete. I am not sure where Simon C get his facts and figures from, but I would be struggling to think of exactly where in the world an F/O could earn that sort of money. Possibly an experienced one (10 years plus) who has become an ex pat and earns that tax free but that's clutching at straws. As an airline Captain with over 20 years experience, I still havent reached those heights.
So in short A, do an awful lot of research before you commit your hard earned cash to the CAA's coffee fund.