For those living in Alabama or who often fish Alabama Reservoirs and have interest with Garmin electronics….LakeVu Ultra HD MaxDef freshwater charts (SD card) offers compelling features for freshwater fisherman. Last checked there are 40 lakes that support MaxDef features. Fortunately for Alabama fisherman eleven reservoirs in Alabama are supported. Side Note: I think I just read somewhere MaxDef lakes have increased support to 70 lakes nation wide. In most of Garmins latest units there are 17,000 lakes with 5700 HD Lakes nation wide burned into their larger size graphs.Being a long time Navionics users and using latest Navionics Platinum its great mapping but not at level to features listed below. I have Garmins LakeVu Ultra MaxDef map and am quite impress. I have created some seasonal hot spots on my Alabama lakes using my Mac and Garmins Homeport App. That software from Garmin is free and works on PC too. LakeVu Ultra MaxDef Features that stand out to me:1. Dynamic lake level adjustment with real time contour and land mark adjustments when lake level changes.2. Auto Guidance…. Draws a navigational path from waypoint to waypoint away from shallow water hazards and land marks. No more navigating lines going over islands or having to manually map out multiple point around land marks to navigate waypoint to waypoint. 3. Shallow water safety shading4. Depth Range shading targets contour depth range by color everywhere on the lake. 5. 1 contour linesTheres many other features but these stand out for my fresh water mapping needs….Like Chet said if BassCat doesnt carry these units one can always order and have dealer install at later date.Pass me another Dr. Pepper. Last edited by Flyswatter on November 13th, 2014, 7:42 pm, edited 1 time in total.