Agree with Matt for full throttle. I know on mine if I have the chute to low it dosen't seem to throw as good? Curious what tractor you using dosen't matter just like to see pics! LOL Lot depends to on if the snow is really wet, i keep my chute pretty steep when its wet? Heres mine 3-4" but not to wet? You learn real quick which way the wind is blowing!
http://www.youtube.com/watch?v=kK7PiQ67HDg