Quote Originally Posted by scrat View Post
Maybe a dumb question but why is structurescan not built into the Lowrance units to start with like the Humminbird SI units? Doesn't structurescan and side imaging do the same thing just different names?
Just how the chose to do it the first couple of times around. Good thing was you could buy the base unit then as you could afford it add the structure scan. All the newer Lowrance touch units have it built in all you have to do is add the Structure scan transducer. With Humminbird there is no upgrade ability.