Very high, but depends on location (highest in HD maps, lower in SD maps) What are the advantages and disadvantages, and which one to select for your goal requires further detail about each feature? Feature Yet, the Navionics offer the details in full while the lakemaster offers fewer details. It may be a contest to choose between these options as both show off their logs online. Since to determine which serves your purposes best, you must test the map on an exact location. However, the precise quality for each differs according to the location. Nowadays, the highest quality hydrographic maps are manufactured by the lakemaster vs.