I ran a new MT 965E and a MT865C this summer same field, same tool, and same day. All I can say is the new E series was impressive. I knew the C18 had torque, but the improvement on the E series was phenomenal. With the 865C I was full throttle to maintain field speed in this application, but with 965E 1700rpm up hills, down hills, it didn't matter. Just kept pulling. The fuel consumption was approx 20% less than the C series.