I have Lake Master chip for Truman and would not trade it for any thing else. For Twain over the weekend it was not that great but neither was the Navionics chip. I ran one on the left unit and one on the right unit and between the two of them I safely navigated it for a couple days.
I would have to go look at mine but pretty sure it has docks at LOZ on my lake master. I know it does on the google earth overlay.


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