Mofarm, I am not sure who told you that reverse bars are in to help with threshing if it still needs to be done.If you are not geting 100% thresh at the concave,then you will need to install filler bars.Add as many needed to get 100% thresh.You will have to remove them for corn and soybeans though.Reverse bars only contribute to horsepower consumption,grinding material through the grate,and the dreaded earthquake effect.Just wanted to clear that up.