Anyone I know that's ever rented or owned a skid steer slams it into things, usually with no consequences; with a tractor, you must go slow, and minimize inertial impacts! That big stump you didn't see at the bottom of the dirt pile may simply stop your tractor at one mph, but may bend your bucket or FEL arms (or roll them under and really make a mess) at ten mph. I also have a bale spear (which I use for whaling) and pallet forks (to move the blubber around), but I go slow. In reality, I've moved many logs that weigh half a ton, with no issues, and pushed logs weighing several tons. I've pulled and pushed several dozen trees down to the ground, also going slowly. If the wheels spin (sometimes all four) then you are at your tractor's capacity! Going 20 mph to yank out a stump can be expensive as well as dangerous (that's when you call your buddy with his raised DuraMax-powered truck, the one always bragging that it can out-pull your tractor.)