GPS map cards

[RRRKKK]

I have a new Hummingbird was looking at Navionics hot maps, is there any other brand? I bought an 2007 card off e-bay and was wondering if its worth $$$ to update, or is there some other brand that is better.

[Grimpuppy]

What Humminbird do you have?

[RRRKKK]

I was given a 595C for Christmas. It seems to be an entry level color GPS system.

[Grimpuppy]

Navionics is the only compatible add on mapping. Only difference between the 2007 card and a new one will be more lakes and more lakes in HD on the new card. But if you do not fish any of them lakes, then a new card will not be any better for you then the older card.

[RRRKKK]

Thanks the only lake I fish is Mark Twain mostly the river here. may try Thomas Hill and Long Branch this year