I'm only familiar with what is on the DR.Depth website. I have given some thought to using the Lowrance log files I record while fishing to create contour maps of the lakes I fish. I'm fairly sure that these maps will never be available for purchase as there is just not enough demand. My desktop PC is getting old and I'm waiting until I get a ruggedized laptop since the software is locked to a particular PC. That my be a while as I have two boys to put through college over the next 6 years.
If I knew that I could create a contour map that my Lowrance unit would read over top the Mapcreate file, I would give it a try. I could then take depth soundings when I went fishing and, over time, create an accurate contour map of the lakes I fish.
Keith
2008 NWR Bash Crappie Champion
2010 NWR Bash Yellow Perch Champion
2010 Buggs Bash Smallest Crappie Award