Hi Roger,
I tried the auto throttle while operating in a loader operation and didn't really care for it in the short time I used it. The video was taken right after I took delivery of it. I will try grading with the auto throttle tomorrow and let you know. Another earlier post recommended taking it slower, the tractor was in low range with the AUTO HST engaged. It grades pretty darn good at that speed and the only way to slow it down was by throttle or backing off the motion control pedal. I have been in the grading business for a long time and I guess I was putting it through its paces and in the production mode. The box is one we use on a Ford 2810 and I put it on to try it out. I was shocked at how well it handled it with ease and how well the tractor was balanced. I have a Cammond 2C2 72" box with hydraulic scarifiers and hinged rear tailboard on order. That box should be about 300#s lighter. So far I absolutely love it. She was rolling some dirt! Will let you know.