I'm running a 9860 sts with a 35 foot hydro flex head in 70-100 bushel winter wheat in very steep ground combine also has a hillco leveling system on it. We are running into power problems and are going to chip the combine. wondering if anyone has done this to a 9860 and what you are running? We are thinking of going with the ADS chip but are scared 30% might be to much in the sense of melting an engine? Any one have any input on this or other chips to look into?