Inaccurate performance data for BOB fighters in COD comparing to RL data

[CWMV]

Ok, but your working off of an assumption here. Its not direct evidence.
Pilot's from the BoF saying that they used 12lbs is direct.

Now for the aircraft in game to be modeled for 12 lbs we don't need to determine that every single plane in fighter command was using 100 octane, only that it was in widespread use.
And that is what we apparently have here.
Your using the lack of documentation here as evidence that the planes didn't use this fuel. That's not the case, it just means you don't have the doc's.
Do you have anything that says they were still using 87 for the majority of aircraft?