I have been harvesting for a few years now. I just do some local custom work about 1800 acres, mainly corn and beans. I have some trouble in lower yielding beans getting all the unthreshed pods out of my sample especially when the beans are a little tuff. I don't know if I need to run more through the return or speed up the rotor and close the concave. I have tried some things but closing the concave causes more rumbling. I also was wanting to know the proper adjustment of the brace rod on top of the unloading auger as I need to replace the elbow. Any advice is greatly apreciated. Thank you.