Will this be a "light" flight?
Will there be a large number of females?
Are the selected non payers on short turn around with basic carry on luggage?
Will carry on luggage be strictly weighed by all travellers?
Are there any other paper work savings being employed to be able to add on extra fuel without breaking the max take off paperwork figure?
Anyone care to guess when the high work load in the cockpit will be as far as a pit stop being required or not?
But I do expect this to be a light load with extra gas for the first flight or 2.