We have not had a problem under normal conditions and that was picking 5000 bu per hr with our 8010s we did experience problems in 05 till Case put the updated angle on the seives and this year our seives were overloading when we were trying to pick corn in the rain they were fuzzy and sticky but we should not have been out there, no body else was ! I think the CRs problem is with the having a poor fan to start with I have noticed the neighbors CRs its pretty yellow behind it not exceptable to me, think they are going to change it to the red version but if I do have problems thanks for the info.