I had mine mounted by the transducer on my old boat and mounted it on the center console on my current boat. I prefer it in the center of the boat. When it shows me on a waypoint I am directly on top of it. If you fish out of the front of the boat and your Point 1 is mounted near your rear transducer, you are 18-20' away from where your graph shows you to be. I mark most of my structure w/ side scan and then when I am navigate to that waypoint it is directly under the center of the boat instead of under the back of the boat. I can find brush piles easier with the front graph since I have moved the antenna to the middle of the boat.
10 lake records, 3 all tackle, and I only added this because Rick did and I have more.