As a by-stander in this with no real gameplay gains from the final verdict (i will fly pretty much everything, both sides of the sim), the way the whole thing reads to me is:
1) Fuel was the "property" of stations/airfields, not specific units.
2) Critical airfields received supplies of 100 octane fuel.
3) Units rotated between different airfields as operational needs dictated.
4) When a certain unit happened to operate from a field with 100 octane supplies they would use it, when operating from another field they would not.
5) This also explains why there are a lot of combat reports from different units mentioning the use of +12lbs boost.
I certainly can't believe they would be moving all their fuel supply with them whenever they changed stations
