We had a 2002 model 9750. From that experience I would never reccommend a STS to anyone for rice. Maybe the newer ones are better, maybe not. The STS we had was the "rice" version with the extra threshing elements on the rotor, rice wings on the feed accelerator (de-accelerator for us) stainless augers and a few other different things. We were never able to choke up the rotor because the feed accelerator would plug so easy that the crop never got to the rotor. We and the Deere dealer tried numerous things to get it to feed better but after 2 years it wasn't a bit better than when we first got it.
You and the rest of the rice cuttin world might have better luck with the STS but we didn't. Ours got traded in on a 9790 Massey. The STS went south to Louisiana and a few weeks after we traded the new owner called asking how he could get it to feed better! I told him it was his problem now and that it was the reason we got rid of it in the first place. He wasn't real happy with that answer. But he just had to have a STS. He got it too.
You and the rest of the rice cuttin world might have better luck with the STS but we didn't. Ours got traded in on a 9790 Massey. The STS went south to Louisiana and a few weeks after we traded the new owner called asking how he could get it to feed better! I told him it was his problem now and that it was the reason we got rid of it in the first place. He wasn't real happy with that answer. But he just had to have a STS. He got it too.