I'm used to using north up. But now I have a point one and use course up. If you want to cast to a waypoint you can't beat course up. For Navigating I found I have to zoom out much more with course up to recognize where on the water I am because I was kind of used to see the under water humps in north up and recognized them, but when the map orientation is spinning around I found myself following the wrong contours in course up.