I don't buy this story about an 820 cutting closer than a 1020 or faster...You are talking about an outfit that put new sections on your knife, timed the knife, set the angle of the feeder house faceplate. I will cut alongside anybody with a set of new knife sections as will any Deere than I have cut beside...An 820 is a good head, and with a new knife with the face plate angle set properly will cut with the best of them, but so will the 1020 and Deere heads also.