That may be true, if you are comparing 4 engine aircraft to 4 engine aircraft, but when you subtract two engines and realize that the 777 burns the same amount as 2 1/2 engines (CF 6's) then a couple of pallets less will not kill you. While I know that the ACMI customers pay for the fuel, costs are never-the-less costs and if someone can do it cheaper and more reliably, guess where they will head. DHL/LH are going to the 777, Fed Ex is going to the 777, UPS is looking at the 777. I just feel that the price of fuel is going to be a killer with 4 engine aircraft. The only way to compete would be to drop the rates with very little profit margins. Lose an engine and guess what? There goes the margin.