We have updated a number of 9000's to the new ten series. I believe the package(concave,digital concave indicator,new mud shields etc.) are the ticket! i had a 9500 without and 9510 in the field in high moisture corn (over 32%) and the biggest difference between the two is that the 10 series could be set in those extreme conditions much easier. However after serveral stops the 9500 could do the exact same job. result the 10 series is more forgiving like the 7720 t2.