We used to run a 7120 in mustard. Had the pre sieve all the way closed, bottom sieve all the way closed, rotor at 300, cant remember the fan settings. I think between 750-850 (leaning towards 850), and the concave around 4. Was always pretty good at keeping it in the machine. Used small wire in the front two modules, and large wire on #3 and # 4, although this year we switched to slotted hole on the rear two, to keep the tailings down.