Combine engineer with Massey told me that they were testing in europe this fall. They were using the 9790 platform with 400+ hp. The rotor was a limiting factor in capacity. (with the tough straw) They want to use a hydralic rotor drive but might have to try the fendt transmission with a larger rotor. If the Massey rotor is a limiting factor in capacity, what about J.D.'s and Case's rotor size, maybe just adding hp. isn't the answer to combine capacity. Good luck perfecting a class 8 Massey combine. Neil