From what I have verified the Hotmaps chart is very accurate. I was surprised that the less expensive Handheld edition had more accurate marker locations than the Premium edition. At least that's what I found in the south end of Meredith Neck near the Cattle Landing.
There is an error in the chart (see below) in that the navigation path passes inside of marker #3. There's another error where Jolly Island is supposed to be. (This must be an old chart - before it broke off from Bear Island!) You'll notice that black markers are a different shape than the red. They probably did this in case the chart was used on a monchrome display.
From what I've found so far every marker was where the chart said it would be. Shallow areas are identified and you can turn on/off the depth soundings depending on your preference. I found it was distracting to have all the depth lines showing.
I really wanted to get a Nuvi and add the Bizer chart but Stewart at Bizer wasn't sure which Nuvis worked with the chart. He said he had feedback from a couple of people that the markers were not in color and that's what turned me off.
Rick
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