have a 300 picker with 343 head rebuilt husking rolls , new brushes, and added two ear movers for a total of four.Having trouble with husks and ears getting  hung up on bottom of bed and then the corn backs up and plugs. have the bottom shields set so the rolls are rubbing like the book says. I'm in first gear with a 4320 and still troubles. Can someone give me some ideas please. other guys tell me they got 3 or 4 mph no troubles, what am I doing wrong? Would a set of the husking pegs help more ? Thank you