We just cruised through the Bahamas extensively this year. We have the latest CMAP on our chartplotter
and also had the Explorer charts in raster format for our chartplotter
and in paper form.
The Explorer charts are MUCH more accurate than CMAP and in fact anything else out there. They are the absolute standard for the Bahamas and virtually all serious cruisers are using them.
Often we would be anchored "on land" according to the CMAP, while the Explorer would be accurate.
In practice, I would plan the route
using Explorer raster charts, then transfer the waypoints into the CMAP chartplotter to actually use at the helm
and drive the boat. Occasionally I would bring the laptop
into the cockpit
, when conditions warranted it.
In my opinion, relying only on CMAP to drive the boat was not safe.