I don't know from experience, but what you said there JohnW hits close to home......

We run one of the last 8010's made.....After looking at the farm show this february at both the red and yellow......  and how the returns on the yellow feed to BOTH sides of the shoe..... I cannot for the life of me figure out how a red machine can beat the twin yeller one.....

All the returns on the red get dumped on the left side  (rethreshed).     In 80% of conditions, this isn't a big deal, but in high moisture corn..... I cannot help but feel it is a VERY BIG DEAL!!!!