I dominantly fish Ontario, Erie, St.Clair, Detroit River, and several smaller lakes in northern Ontario. The Insight card is not the greatest for the lakes I fish up north so I will be upgrading it. My new boat has the Lowrance HDS-7 Gen 2 and the Insight card. In my old boat I had a Hummingbird Helix 5 Si GPS with the Lake Master chip and it worked well for my needs. I am in the market for a new nav card for my new boat/plotter.