Hi HoHun,
I believe the FBM contributes to gameplay and in an indirect way, to realizm too. It seems to be HT's view as well.
If you claim FBM = 2 is too much, the claim may have some merit, but FBM = 1 is too low. Nobody said 2 is the golden number and must be so. It used to be 1.5, but after remodeling the fuel consumption on all planes HT changed it to 2 - most likely since you could also stretch your endurance better than before.
A good FBM compromise should be low enough to allow a reasonable typical mission profile in the MA in the shortest legged plane (lets assume a yak) taking into account reasonable fuel management (aka, not firewalling the trottle from takeoff till landing). It should be high enough as to require 100% fuel on the smallest tank planes (this will NOT make them heavier than the opposition measured in lbs). Higher FBM will also require fuel management from gas hogs like the american radials and twin engined planes unless they want to be extra heavy (and that "extra" grows linearly with FBM, for the same flight duration).
I for one would not like to see P51/38/47s on 25% fuel flying for 40 min at full throttle.
What do you suggest? 1.8 1.6 1.5? Give a good reason for the value chosen and I will support it. Maybe even HT will listen if you give a good argument for the exact value.
Bozon