Went fishing Tuesday. Water temperature was from 48 to about 50.5 degrees. I am determined to learn to NOT use fish icons.; I am having to relearn and rethink everything I have strore up in the last several years. My DI shows a narrow bottom, and the pictures are not like the ones Lowrance shows. The bottom is soft in the lake I fish and the bottom is shown narrow. The bottom on the 2D is also shown as narrow. I also realized that the DI is almost non existant unless their is some movement of the boat.It does track the bottom and clearifies the 2D pictures. I feel the settings are pretty close and just because I didn't detect any fish, this probably was a lack of experience. I read everything I can about this unit , so everybody keep posting,,,,,,,Thanks........crappie1133