Did I understand you that you put all foward bars in and no blanksIJ If so you need 2 blanks in row 3 and 4 blanks in row 4 on cylinder with 6 disrupters. Did not have F2 bars at time so TBran found me a 715 bar, cut some off, and fit in full length of seperator grate. Have cut 13% to 18% beans and I have practally no cylinder loss. Run pacer at most sensitive setting and needle moves very little from faster. As far as speed 850 rpms at 18% and was at 725 on 14%. The more beans dry and the more rain the easier they will crack. But the weather in W.Tn has been close to yours in Middle Tn.