I have rotor loss sometimes (r75) in high moisture corn due to shucks and leaves plugging part of my seperator, in the bottom and front section 2nd row of bars in from discharge. Dryer corn with dry leaves and shucks no problem. Rotor speed is 450 and 1.25 on the concave......sep grate on 9 seems to help some. Dry corn leaves and shucks almost no rotor loss (coming from discharge)Slower ground speed helped also