Kw, I forgot to find out what year your l2 is. Hopefully it is a 1980 l2 or later.This is the year they went to a 7 1_4" longer shoe,more cleaning capacity.Around here I would tell my customers to try running the long tooth chaffer as long as the bean stems are not being pulverized.If you are turning the stems to powder,then you may have to run the short tooth chaffer to eliminate sticks in the grain sample.In either case I would also recommend adding a third lever to both chaffers and running a piece of metal forward and cutting the front six rows of louvers loose so they can be adjusted seperate of the middle and rear tail section.This mod. will allow you to run the front six rows wider than the middle section letting a majority of the grain coming off of the grain pan to drop down to the sieve,which in turn lets you run the middle section of the chaffer tighter,then setting the rear tail section wider to catch any soybeans that make it back that far.Frt. setting 5_8",middle setting 1_2",rear setting 5_8",fan setting 6-7,grainsaver setting 3_4 to full open,sieve setting 3_8"or tighter depending on bin sample(Bean screen would really work well also)Don't forget to check your fan choke to make sure it does not have dirt and dust build-up on it,not letting the choke open up to the position you set it on in the cab.Hopefully we have not totally confused you,also the above mentioned mod. on the chaffer will work super in corn also,frt. setting 3_4",middle 9_16",rear 3_4".Good luck.let us know on further questions. Hyper Harvest II