Well this might seem off topic a little but I came across this while looking for information. I have not seen this discussed yet and since we have a GPS with this unit I though this would be a good link for those interested. Information is only as good as your ability to retrieve it and understand what you have. The guy in my view gives a great presentation about what to do with your GPS data. There are about 4 videos in total so don't stop on the first one. I have not recieved my unit yet. In the mail so to speak so I dont know if we have the optiions to rename our waypoints to the extent this guy recommends. Hope you find it useful. Getting the most out of your GPS 1 - YouTube