9870 cleaning problem

Running a 9870 in irrigated white wheat and I can't get a good sample. Getting unthreshed heads in tank. Tried Concave at 7-15 with little difference and rotor speed 800-960
 
Any chance this wheat is still too wet? Usually tops make it in the tank when the wheat is still too tough.
 
Rotor speed is too slow. Start at wide open and then slow down to where your not damaging any grain an you will be set. Concave set as tight as you can get it and not hit the rotor.
 
The wheat is dry. Probably too dry 10-11. I sped the rotor us all the way and had to almost completely close the sieve but it's working and not sending it out the back
 

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