On a larger machine the smooth bucket and tooth bar is a great solution.
I discovered on my 543B I had a tendency to try to make the machine do things it just was not big enough to do. I learned the hard way I needed a bigger machine if I needed digging projects done quickly.
That's why I know have an S510 and my 543B, and often wish the S510 was a bit bigger.
I have learned, in my old age not to be in a big hurry and it save a great deal of wear and tear on the machines and my nerves.