Posted 3/9/2008 16:55 (#329968 - in reply to #329650) Subject: RE: Need opinions about Greenstar SF1......
I don't know, we use markers and SF1 and would say it is well worth the money. You have the marker to make sure you are on track and you don't have to sit there and drive the tractor all day. Takes the stress out, and you can watch whats going on better.