The donut can be aggravating, but it has some advantages. Even though there is no arrow pointing the direction you are moving, the donut still updates and moves. When that waypoint icon is in the center of that donut, you are "there" no question about it. I'm sure the heading sensor gps is better, but if you are fishing waypoints, it is pretty easy to move above .5 so you will have an arrow, then when you get close, slow down on purpose to get the donut and put it around your waypoint icon.
It is the same as visiting a pastry shop. Your heart may be set on a bear claw, but if they don't have any or they cost more than you have in your pocket, a plain ole donut just ain't too bad.
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