We are thinking to upgrade our combine,s Currently have a 2188 and 2388 , both with 8 row 30 inch. We think of one combine that would do the same as the old two. The new one will have a 12 row 30 inch Geringhoff. Currently we move 800 tons per 12 hour day. So the question is 7120 ore 8120???? Thanx for your info