Depends on the dirt you're loading. Topsoil seems to be the hardest to load. If you pre-rip with a subsoiler, just do it every few feet apart, and that will allow enough crowd to load it, plus still give you solid ground for traction. If a person turns it over with a plow to loosen, start at the far end of the cut, and load a short section where the tractor wheels are on undisturbed ground. I prefer the ripped earth(clay), as it breaks up somewhat, and spreads better. Plowed ground may let it dip below the bottom of the furrows, and pick up a huge cube, and may not spread as well. That's the only real problem I see with the one attaching directly to the 3 pt. arms. The ones with the trucks under the front give you a lot more control of the cutting edge, and easier to feather the cut.
I'm guessing most of these smaller scrapers roll over to dump, as mine does. MUCH nicer to have the ejector like on the big ones. They do a much better job of spreading/grading the dirt.
