If the beds on your farm are not straight it is frowned upon by your neighbors. It is not easy driving a tractor across a field and keeping everything straight, row after row. Thanks goodness there are now satellite navigation systems that can steer a tractor to within less than an inch accuracy. We do not have the capability ($20,000 +) but we know a farmer who does and he kindly set up 32 acres of 40" beds for us last Tuesday. Thanks Louie.