Quote Originally Posted by Stymie View Post
Sorry, I forget the names and don't have my manual handy, but you can do a waypoint target? or trolling grid? and the distance between the circles or lines is equal to the map scale.
I like the HB trolling grid. I like the fact that you can rotate the grid and optimize your trolling patterns for different size coves or smaller lakes. I use it, but then I am running about 2-3 mph when doing this type mapping and dont have donut issues. I like it.