Just looking at JD parts and noticed a "raised" Front chaffer option aswell as the adjustable front chaffer on the 50/60 STS. Can anyone tell me the advantage(or disadvantage) or the raised front chaffer over a adjustable one? Seem like a good idea but the raised section looks like it is at the front grate bit than it slopes down hill where the crop falls through. I could be wrong and please someone correct me if i am but would it be better to be raised all the way to slow the crop down over thw cleaning part? Thanks again.