Sounds like you have experience with this system. A lot of helpful info, thanks.
When I had the 1644, we used a round bar concave in the second, and then the third concave had every other wire removed. That should work for corn shouldn't it? Or would it be better to have round bar in the third also?
I will need to get a cover for the first concave when we run beans. That unfortunately didn't come with the combine.
Another question, is there a set of concaves that would work for both corn and beans? To save changing them between crops.