The 647 is a great tiller. When I was shopping for a tiller for my 2210, I ended up with the Woods GTC 52-2. I think I paid around $2K about 3 years ago. The thing is built like a tank. The 2210 handles the 52" pretty well, as long as you don't try to bury the tines at full depth in virgin ground. In soft or previously tilled areas, you could till as deep as you want, but it certainly works the tractor.