Topic: What makes the older navionics cards so good?

[larry e frazier]

I just purchased a navionics 2006 hot maps card and it has much better accuracy than my 2008 hot map. Whats the difference in them and what is the best year for the hotmaps?

[Bob B]

One another site, I read that Navionics started using a different provider for their "base maps" in either 2008 or 2009.  The new "base map" doesn't have as many details as the old. 
I also read that after a HD survey has been implemented that many of the details such as channel, roadbed markings, etc are not on the HD map

That is why I shopped around for a 2007 premium card.

I haven't been able to verify if these rumors are accurate, but my 2007 premium has very good details for lakes that I fish that also are not HD.

It would be nice if Navionics and Lakemaster had half as good of support on these forum as Humminbird has.