Maybe this will help with imaging

Down Imaging vs. Side Imaging on Fish Finder (Plus Tips and Tricks)

I would get a MEGA DI unit which will also have SI. A SI unit will not have DI. You can alway call Brian at BBG Marine (Member Sponsor)l he is very knowledgeable and will answer your questions and concerns.

Might want to think bout the largest screen you can afford. My ole eyes needed a 10 inch screen.


Rickie aka rnvinc may chime in one here as we..