So, just how accurate is that auto steer?

So many times I have been asked questions about auto steer – does it really work?  just how accurate is it?  can I get rid of my planter markers?  will it work in the hills?  They say a picture is worth a thousand words, so I have included one below.  Let me give you a bit of background on this phot0 first.  We were in the field calibrating a system with a 20 foot swath width, and put in a flag at the drawbar on two passes, then measured between th

e two passes.  I’m not sure we could do much better than this!