Here are a few of the before and after shots:




The process to record your sonar logs is pretty easy. We had two guys running older Humminbirds, a few with brand new Lowrance units and some older Lowrance units and they all mapped it seamlessly. If you are interested in improving the quality of your local lake you can view this part of the Navionics site to learn how to do it: https://www.navionics.com/usa/support/tutorials