i've read through all the straw chopper mod threads i could find on here but cant really figure out what the best way to get 40' spread outta these 500 series choppers is. I dont really have much time to play around making things so i guess im looking for "bolt on" modifications. I played around with the factory adjustments and could get about 35' in wheat straw but at most about 20' in soybeans. The tailboard had slots for an extra set of fins so i installed them but it didnt seem to help much. I also put new "wind blades" on the outside edges of the chopper and that help some to but still cant get close to 40' spread. Any suggestions?