David, go to the electronic board and look at Roy's post on side image and live scope. He has the mega image and it really looks good the way he has it set up. Just Saying. I got the HDS 7 structure scan and HB 998c si/di combo they works well finding what I'm looking for. Shop around and ask the question as to how you fish and see what you come up with. CrappieKidd has the Helix 9 mega image maybe shoot him a pm and ask him how his is working out for him. Just remember the bigger the screen the more you'll see what's down there. Good luck!