Got an 09 9770 from a dealer that was supposed to be "field ready". The dealer has very good customer service - came out to the field to set me up - did loss assessment with a catch pan etc. Harvested entire spring wheat crop and now discovered the covers that go in front of the conveying augers under the rotor were missing! (they remove them for washing the machine so water can drain out) From what I'm hearing my yields are very similar to my neighbors but can anyone speculate on how much grain I might have lost?