Straw walkers are the weak point in a 9600 or 9610 used in rice. Either a rasp bar or spike tooth cylinder will do a fine job of threshing. Threshing isn't the problem in rice, separation is. That's why Deere came out with the CTS. You could get them with rasp bars or spike tooth cylinders up front. Most around here with CTS's opted for rasp bars. The rasp bar equipped CTS's do a better job in most any other crop than the spike tooth models. I'm not sure they ever made a "rice" model of their 9600 straw walker machines. If they did, it wasn't anything more than adding a little stainless in high wear areas. Maybe HD final drives. If you do very much rice, don't even consider one unless you have a stripper head out front. They may be good in other crops, but they're a poor excuse for a rice combine. A CTS, STS, or AFX rotor equipped Case would be a much better option.