Nice results. I solved the software issue on a D7100 by springing for the extra cost and slight extra size of the FX version, which has all the switches on it, and is thus fully compatible. It's also of course a little faster at the high end, and supposedly a little sharper. When I raced mine with my wife's earlier 70-300 AFG, it won noticeably though that one isn't so bad either.
I would have gone along with the DX VR version, since my main use is for traveling without a tripod anyway (and since I could be quite sure any new model would outperform my rather sorry 55-300DX) , but some reviews suggested that the VR in that version is not friendly for panning birds in flight. The extent to which that may be true I don't know, but the FX version gets BIF all right, and is still just small enough to go in my limited travel kit.