Dad purchased an new Ashland I-950 dolly-style ejection scrapper (9.5 Cu yd), last year.

Really like it, but he only has a 4440 2wd to pull it(felt dolly wheels were necessary). With duals, I can get a full load, most of the time(not always spilling over the sides, but pretty good for a 2wd tractor).


I only have experience with just this one, pull-type scrapper, but we have filled in narrow washouts, in centers of waterways, with dirt, and thus, we didn't have to disturb any of the grass that was already established. Just add some dirt=ejection scrapper was really nice, for this.


This fall, I moved dirt up against old farm building(on steep sidehills, in feedlots, that had washed down)(This was w/o duals, so I could get close to buildings/fences=1/2-2/3 loads were max) 

I reworked two waterways and reshaped them.(we'll try to seed them down, early next spring) 

We also carried additional dirt, into feedlot areas, that the cattle had move dirt away from the  concrete areas(over the years) and fence perimeters and it was so much faster than using loader tractor and hoist wagon or manure spreader, to move dirt.        


About at the end of the projects(December), Dad mentioned that he is very happy with this Ashland I-950 ejection scrapper.
  


Note: I got some good pointers, on operating these, from guys on here, too.(Thanks, guys)