I have a new Humminbird 597 and Lakemaster now offers a Florida, Alabama, Georgia chip that includes lakes for those states and also includes the gulf of mexico, anyone have any experience with this chip ????? I like the fact that, you can enter in what your boat drafts and it will shade any contours less than that in red to keep you out of those areas. I will use it for 99% saltwater inshore and near shore. Anyone ????