Paul from Navionics here. On the Bahamas data, guessing the chart you have is 3 years or older or a Classic chart. We at Navionics have spent three years creating all new data. We released it back about two years ago which is data from right then. Much more recent than what Explorer charts have shown and I have verified that on a recent trip to the bahamas. I will agree prior to that our Bahamas data from South of Andros was very lacking. We let our old data disapear in preperation to develop this new data. it is signifigantly different. That new data also appears on the ipad and iphone as well if you want to check it out.
Happy to answer any questions you have