Mark Underwood and I developed a simple sidehill compensation _ shoe load distributor on the Bi-Rotor combine when we were building the XBR2. Basically we mounted 10" long by 3_16" diameter spring steel tines into n50 roller chain. This chain served as the finger extension behind the pre-cleaner area. A small 1 gpm hydraulic motor with about a 4" sprocket on the right side and a similar idler sprocket on the left side provided variable speed rotation to turn the chain to the left or to the right, depending on side hill slope and shoe losses at the left or right rear corners, as measured by the grain loss monitors. The upper have of chain passed right above the upper chaffer, whereas the lower chain passed just below the chaffer (and therefore had no significant material load on it). The entire lateral distributor was mounted on to the oscillating shoe frame and provided a simple means of controlling material flow onto the top chaffer, depending on side slope or uneven rotor distribution. John Deere was extremely impressed with the device and bought the 16 Aug 1994 patent (5338257)back in 1995 along with the other Bi-Rotor combine technology. Unfortunately, this device is not on the market, perhaps because John Deere had already designed sidehill combines and would rather sell those higher profit components. Sorry guys, in hindsight, we wish that we would not have sold out to John Deere. If enough people request the simple benefits of this lateral distributor, may be they will make it an option on their STS combines.