Seeing as we only about 1" of snow, maybe once every year or two, I do not have much to add...
But, with my interest in my old Farmall, I see Farmall A's like mine, and Cubs with belly blades and front blades for plowing snow and grading driveways.
It seems this would be a much better way to plow snow than having to back up everywhere. It would appear it would give better control, and sure would save your neck muscles.
A belly blade would not work on these newer CUT's though; they have hardly any ground clearance compared to a cultivating tractor. My Farmall has tons of belly clearance compared to my Kubota(it was built for that though).