Maiden voyage with my new bird on Bridgeport this afternoon and found no lake map at all. What chip do I need for best maps ? Oh and water temp was 47-51 water still stained no bites .... I checked out beans creek

The included ContourXD background mapping has 3,000 bodies of water nationwide with contours. That is tens of thousands not included.

Humminbirds read Navionics and Lakemaster map products. The best one for you is the one that has the data you want, where you want it, how you want it.

You can download the Lakemaster list from the Humminbird Lakemaster website. The ones listed as Lakemaster High Definition Survey are very good, the other two types, not so much.

You can view the current Navionics maps on their website's WEB APP.
When you view that, there is a circle at the lower left of the panel. Click on it to change the color after you have zoomed some. When the circle is grey, that is Navionics data. When the circle is blue, that is Sonar Charts which is HD mapping created from uploaded sonar logs by unit users. You cannot purchase Sonar Charts, that is FREE to download to a Navionics+ card or Hotmaps Platinum card.

Get the SmartStrike map for the area you will fish. I love mine.

I am looking at getting the helix 10 to upgrade my console graph. Would you mind posting some screen shots of DI and SI (if you have it)?

I am on the fence been spending the money for the helix or getting an upper end core unit at the discounted prices.

Thanks!