Not to argue- but how can you NOT like an SDP? (That's for mother MAC, not you KC-10 FB).. It lets me carry the max cargo with the minimum amount of work. It's win, win for AMC. I used to run a demo on the C-17 showing how you'd save a bunch of prep time and get more cargo on board using the SDP. I don't mind making my own departure weights- but the customer and mother MAC may not be as happy.
Will the IFM folks become real by the FAA book of definitions, "dispatchers" and tell us our cargo and departure weights? Tcha.
Till then, give me the SDP. Even then "they" miss the icing conditions and wet runways that can cut into their planned payload.
ALWAYS, unfortunately, a GREAT topic.