Jim, I have never tried the follow the contour function since I have only run a couple on other folks boats. Here is a suggestion, go into menus and set it back to the legacy mode, then when pressing the N button hold it down until the circle disappears around the N. That puts it back in the compass mode and it will track a lot straighter. I found for some reason that the LINK in the GPS navigate mode wanders much worse than my Ipilot does in GPS navigate.