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 | I have to agree with Plowboy.  The only chance you have of hitting the right row is if the rows were planted using accurate GPS (SF2,Omni*HP) and using the same AB lines as the planter.  My brother planted with SF2 in our JD9420, and now I am using his AB line with our JD4720 sprayer.  It lines me up on the right
 row everytime.  I have to shift the track a little every pass, but for the most part I am able to autosteer down the row.  It is easier to push the shift button when
 it starts getting off, than bearing down on the steering wheel manually all day.
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