Are you sure about the field tracker on your neighbors 860 MasseyIJ I believe they had a float option, but I never knew about any type of field tracker, terrain tracer, contour master, or whatever you want to call it. I have never seen anything listed about it in the parts manual, which we have been through from front to backtwice! If there is one available for a price under 10% of the machines value, which would figure out to around $100 dollars, then I would be interested in finding one.