Switched from a jd s780 to a new 8700tt this year after demoing a narrow body the previous year. On this combine I bought the premium residue management chopper/spreader. One thing Im a little confused about is that when I kick the machine on the chaff spreaders move so they shoot the chaff into the radial spreaders to be spread with the straw. But when the threshing system is not on the chaff spreaders look like they will shoot it out to the sides. I get that when you spread both straw and chaff together it helps throw that chaff against wind but I would like to keep them separate at times. Also it was not shooting the chaff perfectly into the radial spreaders so I was leaving a trail of chaff where it would just hit the back of the chopper and fall to the ground. Can I stop the chaff spreaders from moving so they shoot the chaff to the sides and not into the radial spreaders? Also what adjustments can I make so that the chaff actually makes it into the radial spreaders?