Out of the owners manual. Rotor 625, concave #4, chaffer setting 3/8, shoe 1/16, std fan 470. Have not personally cut canola yet, have some planted for next year. My experience in trying to clean small seeds has not been very good when using an adjustable sieve system. Cut flax for the first time this year and could not get a clean sample until I went to a 7/32 round hole bottom sieve and an air foil top top. Got a very nice sample at that point and little loss on the ground. I plan on using a 3mm bottom sieve for the canola. Maybe it is just my sieve, but even closed tight I still have some gap between each slat and feel that is where the trash is getting past. I am running a 1470 which was a hillside 1460. It was updated to the cross flow fan system before I bought the machine. Have a friend who runs a 1680 short sieve system with the original fan system and he has same issues with dirty samples when cutting small seeds. So you might consider a different set of sieves if you can not get things cleaned up. Good luck to you.