Go narrower with the deck plates go to 7_8 at the front and 15_16 at the back use a cupple of sockets for a gauge try that that is how we ran our 1083s you might want to tighten knives so they are just ready to touch, gathering chains I have tryed both ways and I could not tell any difference, really important to have your drum all the way up in the feeder house to eliminate shelling and splatering there. GOOD lUCK.