Well built unit. Good for picking up 4 inch and larger rock with finely grained loose soil. I have many smaller rocks that slip through the unit . Some are large but thin and so still get through the grates. My solution is to create a grate shaped sleeve made of flat stock metal that will fit between the existing unit and be removable. Easily enough made with my welder but it would be easier and likely less expensive if Titan made it and be purchasable as an add on. Of note I bought the fine grade unit which still has wide enough spaced grill that allows rocks to filter out that I would prefer to be captured.