i purchased a afx rotor at an auction about a year ago.i am now getting around to trying it. i noticed somthing different about it anyway it only has places for 42 rasp bars, a whole lot less than any rotor i have ever seen. i can not find any info about any rotor having that few. also it only has 4 positions to put separtor bars at. i am sure it will be fine in soys, but what about wheat and corn??? i am just afraid of putting it in any not being able to thrash my wheat. any info???? or suggestions?????