We run a 06 9660STS in Lancaster Pa. We windrow all of our straw for small grains. The only problem after we bale there is a path of chaff left where the windrow was. When we go to plant late beans after we have problems planting where the windrow was. Most of our neighbors run CaseIh machines and can spread the chaff and still windrow the straw. I've been looking into mounting some kind of spreader on the back and still windrow the straw. I've never seen it done but I'm sure someone has. Does anyone know of any custom spreaders that have been made or aftermarket companies that have built them.