I love this site but I was thinking, how do I know if I am not just doubling up on POI that are already in my Nuvi 760, like McDonalds etc?
When you down load custom POI's from here you will find that there will be ones that are dups from the favorites that are loaded on the gps. The may difference is the custom POI's are in most cases more up todate and accurate than the ones in the faviorites.
...how do I know if I am not just doubling up on POI that are already in my Nuvi ...
Because they are accessed differently, the duplicates that are there are somewhat unavoidable. You would not want a custom POI file of just the stores that were missing from the old out-of-date built-in POIs, for example. If anyone did it that way then you would have to search both sets of POIs (custom and Internal), and people would have to maintain different sets for different map users, those who updated to 2009.11 would need a different set than those still on 2009 for example, and the 2008 users would need a different set.
Thankfully, POIs don't take much space. You are best off just loading a full set and not worrying about it. I hardly ever check my built-in POIs except for something very stable and unlikely to change that I don't have in my custom POIs such as Post Offices. My suggestion is that if you think the Garmin POIs that are built-in for a particular chain or type of location are adequate, use them and don't bother with the custom POIs for that type location. If you want more complete and up to date POIs then load full POI files and don't worry about duplications, they will cause no conflict. Then only use the built-in POIs as a fallback if you are looking for something that you don't have a custom POI file for.
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