If you try reversing the course in a halfway by choosing Back to Start and then Along Same Route or Most Direct Route, you'll be constantly prompted to make a U-turn.. Even if you select the saved Start location, you''ll be asked to make a U-turn and go into the opposite direction that is not where you need to go. This goes on for 2 or 3 kilometers or so. I think something is related to BaseCamp course saving option. If you save a course as a "route", you get problems later reversing the course, but if you save it as a "track", then the U-turn problem disappears. It seems so. It needs more experimenting. In general the Edge 530 unit works great.
