Maybe I can tell you guys a little more about my Disrupters. We made them to help in the green stem beans but found them to equally benificial in preventing corn loss. (The reason for Case putting them in their parts book.) I was at the farm progress show in Iowa in 1999, Case had a 2388 in 225 bu corn @ 25% and running it right out the back. The only way that you will lose corn out the back of any rotor is on full corn shucks. The Disrupters and rice spikes will cut up the shucks. Case's idea to stop corn loss in specility rotors was to install retarder bars over the seperating section. (retarder bars-the stright bar over the grates with no teeth on them) Thoes bars retard bean straw, something you don't want to do. My recomendation for specility rotors is Disrupters in the grate, removal of all retarder bars and instalation of rice spike bars over the entire seperation section. Rice spike bars over the grate section in specility rotors do the same thing as the notched seperater bars or scollop bars in conventional rotors. With the Disrupter system you well first cut up green stem bean straw and also stp rotor loss. Vanes can be placed in the center position for all crops. We do have over 10,000 combines equiped with our system. Please call me anytime, its free-ask for Don ( 1-800-235-4461. Thanks.