Navionics chip for Great Lakes

[joes13]

I Bought a larger boat for fishing Lake Erie and Ontario. I am going to replace the old sonar that came with the boat, for a Hummingbird Helix 5 DI chirp G2N. I would like to know which Navionics card would be best for the Great Lakes.

[SpoonPullers.com]

[saugeendrifter]

I am also interested in this question. I however have a HDS carbon, what is the best chip card recommended for either Great Lakes in their entirety or as individual lakes?

[Deep Meat]

I have a navionics Canada and Alaska charts chip. With sonar chart on and when you set up your shading I’d say it’s great.

I am intrigued by C-map chips though!