I have the RB1172. It is about 500 lbs. It is very flexible in that it can offset side to side by about 18", and can tilt as well as angle. I can angle it to cut a small ditch off to one side. Also, I have angled it such that it goes about 45 deg vertical at a slight angle and I used it as a plow in the garden, or to dig into hard ground. It was basically turning it and using it like a knife with a not so sharp front edge. If it was any longer than 6", I would not be able to get the front edge off the ground and use it like that. I have loaded tires, and the 2520 handles it fine... When plowing snow, If I get pushed sideways, I can usually turn it around and do better going backwards. That's not often required.