Originally Posted by 
JDNSW
				
			 
			Undoubtedly Flinders had a strong natural aptitude for navigation, but there is a wide gap between navigation and hydrographic mapping. Flinders certainly improved on Cook's mapping methods, but the standards and general methodology were inherited from Cook. Mapping a coastline in sail powered ships, navigating by sextant and chronometer, measuring water depths by leadline requires enormous effort, discipline, and meticulous adherence to planned methodology.
As an indication of his insight into navigational methods, Flinders was responsible for the "Flinders Bar", the first practical method of correction for soft iron in a ship.  He was also an enthusiastic mapper - not a matter of skill but of attitude. 
It is difficult to think of any other near contemporary who would have had the perseverance of Flinders to complete the mapping of the Australian coastline. To give examples of captains who were not up to it, a generation later were Pringle Stokes who suicided, and his successor as Captain of the Beagle, Fitzroy, who was so afraid of following his precedent that he took a young Charles Darwin on the second voyage of the Beagle to try and maintain his mental health. Then there is Owen Stanley, who died from illness that may have been suicide while mapping PNG - and was so afraid of the coast that his mapping was very substandard.