I tried it last year . Went out at beginning of December 2006 , having spent a month on a Canadian ATPL course and Skyservice 'indoctrination' .
Normal UK salary plus bonus and full Subsistance Allowance . Bid-line system . Busy rosters .Quite a few 'turns' to Mexico but quite a few trips of 4 or 5 days also .
Feel free to pm me.