The farmer in question came and looked at my 9650, and we struck-up a conversation about the R52. He mentioned that in corn the R52 and the 9510 weren't far apart as far as capacity was concerned, but in heavy wheat and barley, the Deere walked away with the show. His secondary concern was the Cummins engine; - he felt it lacked torque and it continually flucuated with the least amount of additional load being placed on the machine. In fact, he could seldom keep his rpm's once the bin got 3_4 full. Cummins and AGCO were both out to witness this problem, but neither had a solution. He has no malice towards Gleaner, it was just the wrong combine for the job. He should have bought an R62 or a C62.