Just broke both feeder chains" 3rd broken feeder chain in soys this year" on our new 7010 with 2162 draper head. Our previous combines 2388 seemed to slip the clutch and then the electric shutoff would seem to stop the feeder before it did much more than maybe bend a slat We broke only one feeder in 20 years on the previous combines. Maybe just bad luck this year or maybe it cannot stand stones as good. The stones were about 6 inch and both ended up past the drum but not in the trap. After the first break we did tie the feeder and run the slip clutch ten times like the manual suggests but it didn't seem to solve the problem Has anyone else had this problem and know of an answer other than picking every stone We do use a packer.