Hm. On the subject of tail-end weight: Just how much weight can you put in a weight box? I have what I think is a small one: Attaches to the back of the tractor with two spades into the mount, about the width of the tractor by 8 inches by about 10 inches deep. Is this the weight box? I use it more as a mini-tool box. What's the best weight to put in there, and how much of it do you put? Chris