I made the plunge yesterday and bought an EZ guide 250,I only farm 200 acres but a lot of odd shaped fields and contours. I am trying to get rid of overlap with spray and fertilizer. The dealer I bought it off of has sold one of the best systems and has just got a used tractor in with autosteer for a freind of mine.We will be on a learning curve this spring. This will be on an open station 50hp tractor for spraying and I am on a lot of hills.Any help to get started would be greatful !