The thickness of the grid lines and tick marks is too narrow, particularly the tick marks. When printed out it is very difficult to read values off a map. In addition, it looks like it is anti-aliased now, which makes it even harder to see. I had a workaround, which was to choose a wild color, select it in Photoshop, make several copies and offset it on either side. This doesn't work with anti-aliased lines.
Steve
Tucson, AZ