The auto fuel is designed to preserve the C of G.
Some of you are forgetting that what most plane designers of the day wanted was stability. You guys (when commenting about "aft tank first" etc) are deliberatly sacrificing stability for agility.
No bad thing in a fighter, but imagine flying an unstable plane for hours and hours at a time.......
It's the same as car tyre pressures. The tyre pressures you use for a high speed dash accross Europe's Autobahns would not be the same as you'd use for transporting the family.
