We ran only rice through our 9750 this past year. The differences between it and a grain machine are many. Rotor made of heavier guage material, more agressive rasp bars and more of them, more agressive feed accelerator running at a faster speed, stainless steel clean grain elevator housing, heavier flighting on various augers, stainless grain pans in grain tank. I'm sure there are some other differences, but I can't remember them right now. Deere harvestor works put 7 of them together for yr. 2000 rice harvest. Five went to the delta, one in Texas, and one in California. I believe they are going to make the rice machine generally available for 2001. We were very impressed with the machine. Didn't have any or the reliability problems that the 2188 that it replaced had. After we got it "dialed in", all we did was grease it once a week, and run it. We ran out of rice before I got finished playing with various combinations of concaves and grates. It does an excellant job of threshing, but is limited by separation capacity. Even at slow rotor speed with the concaves wide open, it did a complete job of threshing.We opened up the concave and grate areas and helped it quite a bit. I'm impressed with the smoothness of the machine. To me, the feed accelerator does wonders in this area. Before we got the header adjusted the combine swallowed wads of rice that would have had the 2188 spitting belts and separator clutches. Never slugged the machine the whole year though we cut some really ugly wet, green, heavy lodged rice. I think that the machine has a lot of potential and am looking forward to next year's harvest.