View attachment pull grader.bmp
This type drag worked just fine for us.
We uses 2 chains one from each corner to pull it.
The general idea was that the angles would cancel out the side pull effects since the one was close to being equal to the sum of the other two.
Also with 3 cutter blades scalping the highs would fill in the voids and angles caused lose material to travel from side to side.
Our drag was welded up steel 4 x 4 angle stock and it served for 10 years maintaining 3 miles of dirt/gravel roadway around our lake until city took over.
Our city now grades with a huge Cat grader and in all honesty we actually did a better job with the drag.