As much as I love 7778, and as much as I've preached its accuracy in the past, I can say for certain that many of the proportions are way off. The docking arms, for example; much too fat. The set is also, as we all know, elongated. The same, I think, could be said for the mandibles on 10179.
Those two are by far more 'Falcon-like' than any of the System renditions, though.