I recently paid a guy and we went on lake jordan my intent was learning. How to use my hummingbird 999 the guide used a 1199. Now I see how he used the side imaging to find structure then the down and 2 d to see what was on it. I immediately tried the say tactics on the alabama river and I noticed the things I thought were fish I saw the shadows. In the river the fish were all suspended I didn't see many holding tight to cover. Any thoughts on this.