ND Dan, this is exactly what I was thinking of doing in replacing floor with 1_4" flat iron. Now the hump you are referring to is the plate in the transition area between the two chainsIJ You are definitely right as far as feeding problems go, there have been no major issues with this R70 except in extreme high moisture_high yielding milo, and at that, the feeder is not plugged very often. Well good to hear that other people have had good luck with this mod, also best of luck on your feeder kits. Sounds like Gleaner should start putting this feed modification on the new machines at the factory. Again thanks Blake