After take off if you hold 1500lb flow a side at 250knots to 10k and keep bumping it up on the same profile as above until the greenlights come on usually about 15-17k you will burn around 1950-*2000 your first hour. Just remember 250 is 250 no matter what your flow is set for and it doesnt effect your climb that much if your not trying to clear anything. Just a technique we use on the 800xp if we need to save fuel.