Expedition Navigation Software 
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Hi.
New user to Expedition and currently I am still using the base C-Map and have not yet put other charts on there. I am working my way through Wills new book as I go to learn the ropes.
I can get Grid based routes to work with multiple waypoints to keep away from the land however when I try isochronal the route avoids my race notes but takes me across large patches of dirt.
I have looked through Will's books and tried several variations on the settings menu including avoid C-Map land, avoid vector chart land and avoid ENC land but get the same results.
Does it require an additional chart to be loaded?
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I make sail notes over land and have optimal routing avoid it. having the optimal routing avoid cmap lands uses a lot of power, and is inefficient in my opinion. just go through the route and create sail notes.
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Yes, Avoid C-Map land is not recommended but someone complains every time I remove.
The avoid vector land can be useful in larger scale situations.
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The race notes take some gpu/cpu cycles to draw - on my shitty notebook ( I have a bunch of race notes to avoid land) - but I do not draw them as it feels like expedition runs slower if they are visible.
Create race note and uncheck draw in the race notes page ![]()
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Yes, the avoiding race notes does use more CPU