[jimmythegreek]

same with me, my eyes are good and Im only 40 but seeing small screens from half across the boat is tough for anybody. I run two 10" screen Humminbird units w side and down and its still not big enough for side imaging clarity. You have to be right at the screen driving w the console unit on side to really use it, and I often have to lower the range out the sides to get a better screen ratio to see schools/fish. Mapping lakes is nice but unless you are trolling and need to keep a depth to avoid bottom its not that worth it to me. Most guys arent like me and are fishing bass and similar fish, and structure is more important than depth, you can just as easily mark waypoints on things you see on 2D sonar and label them to mark areas and spots. Its actually alot of work to go make mapping charts, you end up just mapping small areas that you fish or want to go back to