It would not be the first time I was way off base. My depth finder has DI, 2D and GPS, I have NO SIDE SCAN. Am I missing the boat? I am not sure of the benefits that I would receive. Is the information beneficial? I would be interested in some comments from those of you who have this feature. I love to read the comments,and realize some of you have a wealth of knowledge that you are willing to share. Any comments made by" Ricky" are very useful and informative. Feel free to share your uses and comments on why I am probably all WET......Thanks.....crappie1133