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Recent reviews for this item:
masondood, August 27, 2012 I've been using the 660 for two years now, and it's a great
help. On long distance tours where I don't know the area,
the lane assist is really very helpful. My one complaint is
that in bright sun, the screen is not easily readable. I
built a sunscreen that is about 4" deep from a piece of
black vinyl and attached with velcro "dots" that I bought
at the hardware store. It's much more functional now, and
the shade helps if it starts to rain too.