I'd be quite a bit happier with just more fuel. It's a tough map for me, especially in the F4U-1D, because it's tough to use your dive and high speed handling defensively because there's always mountains under you and in your way in every direction, and when you can't outclimb most opponents you literally end up between the hammer and the anvil on every engagement. I suppose I could avoid becoming engaged down in the "teacups", but that's where everything except a bomber or two usually is.
I'd still find it to be a tough map, but I'd be happier if I just had more that about 15 minutes of combat time which would let me compensate for the limitations of a poorly turning, poorly climbing aircraft with relatively short legs.