I don't wont to hi jack this thread,but I want to add one more thing.yes you can see fish with forward looking sonar,but the best use is to use the technology to locate fish holding locations and to be able to postion your boat in relation to the structure(it helps to keep you from getting hung up if your vertical fishing) without the need of dropping a marker(theres no need for a marker . You'll always no were the structure is)