lee_W
Guest
The decals and the color of the red paint is the main difference. We are running a 8590 and also have a 9700 that has most of the 9720 updates. We had Terry redo the rotor on the 8590 this fall. but it rained so much we didn't get to use in the green stemed beans. I do beleive the rotor takes less power now. The 9700 is a 1980 model, we have owned it most of it's life.