I'd love to be able to ballast my tires for more traction...
I just can't do so in my area. The sandy soil here is truly quicksand when it gets saturated by rain. That ballast or liquid in the tires sinks tractors to the frame here. Same goes for foam filled tractor tires. Just too heavy.
Around here, if you're going to pull any kind of a load with a tractor, or use a loader, you just about have to have fluid in the rears. I've seen rear wheel weights work pretty good, but putting fluid in is so much easier. Years ago, I bought a 686 IH that had one tire with fluid, and the other rear without. It was okay at light work, but if you put any kind of a load behind it, the tire with no fluid would just spin out. As far as the foam filed tires, I've never had any experience with them, although I knew a man here who got tired of flats on his riding mower, and had the tires foam filled. He got rid of it not long afterwards because of how rough it rode. He said an hour of mowing the yard was like riding a bulldozer all day.
