From what I have experienced with the link, The most important feature is the ability to use the HB to set-up and view all the info concerning course and waypoints. I very seldom used tracks and spotloc locations before I could see them on the finder. It works well with any Navionics map. Follow the contour would be nice but without the Lakemaster "HD" map it is not possible. Non "HD" maps are not accurate enough to make that feature useful. Bob