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Thanks will take some learning i dont see what u seeing in bottom pic going to watch videp then start learning i will be pming you soon enough i am sure i have been learning my hds units but this...

Where the best to go looking for info on how to understand nav+ maps and how to read topo maps in general thanks sorry just getting into maps fishing and waypoint fishing always used graphs just to...

Ok thanks

Which chart should i get i only fish in so cal do i need to get nav plus nav platinum or nav fishnchips plus