For how I use tractors - rototilling, mowing, minor earthmoving, and loader work - but not plowing - added traction would be nice. But I found when I loaded my oversize tires on the YM240 to the practical maximum, the tractor was much slower going up the grades in my orchard. Generally one gear lower, and it needed more frequent stops to shift down. After I put on the ROPS I drained the excess. Water level had been with the valve at the top, water level now is with valve at the bottom. This restored the power-to-weight ratio that I liked better. For plowing row crops or something then I would ballast to max but I didn't like the slowness in general utility tractor use.