. I bought a nice gandy similar to this one but better made. It didn't work at all for me. I tried it on ag lime, even with the agitator it would just bridge. I tried it with pelletized this year. It spread it, but any part of the field that wasn't perfectly flat it would bottom out. Rocks were no fun either, due only a couple inches of clearance. I would stay away from these unless I was doing a lawn.