How can you have to use more thrust yet still use less fuel ?
You can't.
Unless you have a very strange engine that has an increasing fuel flow with reducing thrust, VMD=Max End Speed. (Assuming we're working with the same kind of speed in both instances, ie. IAS, CAS, etc.)
I think confusion arises here when things are quoted in different kinds of speed, eg. power curve in TAS and drag curve in EAS.
MJ
