a couple of us were thinking we should be able to run at 6,000 bph in corn. tigercat posted some things to try and had said if they did'nt get to 6,000 he had one more thing to do . as far as i know nobody posted they had gotten to 6,000. at that time i still had a 760tt and about 5,000 is all i could get. after harvest i traded for a 780tt . the best i've done with it is 5,500. beyond that and the return goes full it starts throwing corn over the chaffer. i think the clean grain auger does'nt run fast enough. in the 10 hour challenge video jeff gray is running the combine and stated at one point that it was running at 6,300 bph. what are we missing?