Check tthe auger and feeder beater fingers for retracting at the right time.If you don't have wide spaced rasp bars that would be the first thing to do,a hugh improvment over factory bars.I have much more trouble with my M2 plugging in short beans or weeds than tall, they bunch up on the cutter bar then go in all at once.To minimize this I run the reel low, back, and very fast to keep the cutter bar cleaned off. Hope this helps, congratulations on the good beans. bruce