SO: Say you have a
Duncan chart and a
Bizer chart and a
GPS Chart plotter.
Now you are out there in the boat and you notice a small discrepancy between one or more of the above. Total Confusion now sets in and big arguments ensue...all the while the boat may be speeding into imminent danger Will Robinson.
WHICH Source is Right..? Maybe better to have only one Chart, a GPS and excercise some seamanship and common sense.
NB