Yes I know :-). Just did a quick percentage between the expected and actual, took a screenshot and went to bed. Still WIP but screenshot is updated.
For my next flight, I'll configure data outputs from X-Plane so I can grab numbers more precisely. Let's see how it looks like. But as some other users have already noticed and reported here, fuel flow in cruise is approx 14% below expected value (TAS too low as well) and seems too high on ground/lower altitude. Because in the end, using the AFM to calculate the necessary amount of fuel is pretty close to what we get in X-Plane MU2. It just burns more fuel in climb and descent/approach phases and less in cruise.
It terms of climb performances, it seems to be quite right, just ~5% overpowered, again based on AFM as I've never flown an MU2. Though if I win the lottery, I would love to buy one, it just looks awesome ! Unfortunate they are discontinued, they are so much prettier than a King Air...