Yesterday I learned a valuable lesson on my LS tractor. I was hauling bucket loads of gravel down my driveway to try to patch it up after the rains. I had no rear ballast on the tractor and at some point, for some reason, I took it out of 4wd. I headed down the drive (fairly steep), and the next thing i know the tractor was gaining speed fast. Usually it will stop dead on the hill if I'm not leaning on the forward pedal, not this time. Luckily I only panicked for a second before my brain kicked in and dropped the loader to the ground and the tractor stopped. Moral of the story is no more loader work without ballast on for this guy!