I am running a GS2 screen in the 9400 with integrated autosteer (wouldn't have it any other way). My brother was running the 4710 with GS1 and I squawked to him on the radio about it and he checked and was only hitting 5 sats but was autosteering at 15mph just fine. My cousin with the 8530 has a GS2 and didn't have problems when I did....but at the same time, on Friday when he had problems I didn't and we were only 3/4 of a mile further apart.

I stopped the tractor for 5 minutes while I called the AMS guy, struggled through that 1/2 mile headland, and as soon as I turned around and headed north everything worked fine.