I see that GPSMAP 720 supports only BlueChart G2 and G2 Vision maps. The version of the Creator published here can't create full featured G2 maps. Only supports some marine elements from G2. I read that cgpsmapper supports more elements. I don't know. Maybe someone more familiar can write about this. I see that very good marine map can be created by playing with the typ file, contour lines and marine elements. (see Autodrive Hellas - Aegean see for example)
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