I wish I had never bought the "Plot Master". It does not turn the ground over at all. I have fields that have been natural grasses for years. I mow it down and then hit it with roundup. Then I go at it with the plot master. It just does nothing but cut the soil. I since have purchased a tow behind tiller which takes time but does a much better job. When done with that I us the plot master as a disc. Seems to me that it is a very expensive disc. Maybe it will work better for some but for me it has been a waste of money.