Having contacted several CAT_lexion 480 owners, I find my experience is on par at 3,400 bu_acre capacity in 200-220 bu_acre corn. But then, having conducted a corn field trial in 2003 with independent adjusters who measured harvest loss and weigh wagons to fine tune the performance measurements, I'm still have not heard from any other CAT_lexion 480 owner_operator who has conducted a similar field trial with detailed results. Note: the configuration for our CAT_lexion 480 did not have the deep tooth chaffer and thus, that could be a limiting factor in our experience.