I have ran the air jet chaffer here in Ontario for 2 years. Works great in whites,soybeans, corn, and wheat. I have 3 different types of sections but you could maybe get away with 2. It worked great last year when we were in snowy conditions. If you didn't quit when the temperature started to mild up, the snow would start to stick to chaffer, the ome chaffer would have to be blown or washed out. The Gorden chaffer with removable elemnts could be taken out section by section and clened with no water. I think it is a must to get the most out of the combine, returns are next to nothing, therfore rotor loss is limited to next to nothing. Talk to Gary @ Argis 2000 in listowel.