I was looking into the Montana and thought it was neat device and great for motorcycles, until I saw a video on it. In the video this fellow put the unit on a chair in direct sun lite. When it reached 87F the screen started to act up and switch modes. I'm an old Lowrance XOG user and that unit had a touch screen. The touch screen made it a bear to use with gloves and occasional would get so scrambled in layered maps, that it was useless. I learned my lesson and have never gone back to a touch screen device on a motorcycle. Hence I invested in a Delorme Earthmate PN60. While it is a small, small, small window, it still guides me and has never had an issue in 2 years now.
I have prayed to the GPS gods to deliver a 4 inch diagonal screen, IP7 water proof, with buttons and full 24K topos but no one has delivered yet.
Ill wait until the 600T price drops to $150.00 before test driving.
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