I have the 898 SI and need a Navionics card.  I've read about all the cards but don't see a big difference.  I'm in Puget Sound area of Washington State, San Juan Islands to be more specific.  Best I can gather, the cards below are my best bet.  As far as I know, depth info is all I care about, the more accurate the better.  There might be options/info that I would like but don't know about. I don't think the Inshore high-res bathymetry is available for the Puget Sound.  Anyone have recommendation.  Am I missing an available chart package that would be better?  Recommendations are welcome.  Thanks
Navionics Gold Fish'N Chip West Coast/Gulf FISH-W
Navionics Platinum Plus PUGET SOUND 
Navionics Gold 2XG Canada
Thanks