The lexion 460's are actually the largest combines in North America. The 460 has the greatest threshing and separating area of any combine. When equipped with the Intensive Separation System (ISS) above the walkers, the 460 is directly competitive with all competitive class six and the majority of class seven combines, operating with headers up to 36' draper heads and_or 12 row cornheads, no matter the yield. For a walker combine, 460's are huge on capacity and should be very efficient to operate. like any walker combine, the 460 doesn't have the ability to force productivity like a rotary combine has.