I purchased a Lowrance Carbon unit recently and am searching for a cartography/map option that can provide greater contour depth detail. The base maps - C-map, or Navionics are less detailed than that which I am accustomed to using (Lakemaster) and do not show the detailed structure in the area I generally fish in. Has someone found a more detailed source? Secondly, would the newest software upgrade provide improved depth readings?
Lowrance Map Options
Navionics is what I recommend! When you purchase a Navionics chart you should register it on the Navionics website. You get 1 year of free updates. Always update your chart before heading out fishing or boating so you get the most updated 1 foot contours. Tight Lines. #Navionics
Unfortunately you won't find anything as good as Lakemaster for Wisconsin.
Navionics is better in some places Lowrance in others. Haven't seen the new C-MAP Insight so maybe better then the older Insight maps.