Bill, hope it serves you well. I went with the Garmin 500 because of the ease with which you can swap it from one bike to another. It's only in its first season. So time will tell if it holds up or not.
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A conclusion is the place where you got tired of thinking. - S. Wright
Favorite rides in the stable: Indy Fab CJ Ti - Colnago MXL - S-Works Roubaix - Habanero Team Issue - Jamis Eclipse carbon/831