I never change any components between crops using the large oval pressed metal APS concaves, never intensive threshing plates, Sunnybrook (SB)concave and cylinder "Goose Feet" equipped unit.
I've never been able the covince myself changing anything resulted in a any performance change justifying the trouble.
I choose to just do the best job I can with what I have.
So, let's talk settings with said setup, perhaps I'm pretty staid in my 8th season but it works for me, by crop:
Wheat-APS concave closed, concave 7mm max up, cylinder as fast as possible up to cracking but often as fast as it can run. Cylinder always run in all crops just at or below cracking, I wish Claas would get the quality cam to NA!
Peas-APS open, 10mm, 300 to 450 (low speed drive) upper and lower sieve both max 20mm open, fan 1200 to 1500.
Barley- APS open, 10mm, 800 ish
Canola- Aps sometimes open, sometimes closed, 20mm, 550 to 700 and here's the biggie in canola, 8 total rotor sections manually covered.
Cruise pilot used 99+% of the time
CEMOS Automatic for everything except peas, not a supported crop nor would there be any advantage to be.
I suspect my concave clearances are tighter than most run, I thank the SB setup for that.
Thus ends the Minister Don's sermon!
Conditions can vary wildly for even one producer let alone the diversified group here, your conditions vary, you set for them, just thought I'd throw out my general specs.
I definitely don't like doing anything that takes more power (I also run chopper stationary knife bar completely out) or is more likely to plug anything!