I agree with NDJon on this. We ran 760's and 860's for many years with paddle elevators, we only had trouble with the paddles when something else was wrong. Again make sure the paddles are timed right, Also make sure the top shaft paddles are in good shape, This set is more difficult to replace therefor they are usually wore out. Yes the cylinder bars must be in good shape also, We installed ours backwards leaving the sharp edge to the front and the angle edge to the rear. This helps grab the material and draw it into the cylinder, this greatly increases capacity and eliminates cylinder grunting. We actually turned the bars on our new combines before they went to the field. Also make sure the vanes on the front beater have not been bent by rocks. This will also cause wrapping.