We run a R65 and personally speaking i really doubt it could keep up to a 9860, the Gleaner by design is much simpler and far less moving parts, much easier to work on in comparison. Gleaner did have many firsts from years gone by such as the cleaning fan, possibly the rotor and a few others BUT Deere leads the way in many creature comforts and electronic gadgets and marketing and the real biggy as far as i am concerned is Deere has a far superior flex head, maybe now that Gleaner has a few of Deere's top guys working for them now in design we may see more of those creature comforts and electronic gadgets too. I do agree though that they are all good machines, red, silver, green and yellow, its all how they are setup and taken care of.