I used to have a deere branded 544 10' blade similar to the one on the 4630 above, but on a 4320, duals were useless on it in order to stay within the windrow, and about two tons of counterweight on the 3pt was extremely helpful. This unit would really move a lot of snow-until you pushed into a pile and couldn't back out. this only happens at zero dark thirty at about -2degrees F..once you do that you will learn to leave the limits untouched then it was a great mover. Later I bought set of 12.4x42 tires and swapped them in for the 18.4's and this was like putting chains on. These tires with that much weight on them will crunch through ice now. I sold the blade later because I felt it was just too hard on the tractor.