That's 2D not DI, and it looks like your sensitivity may be a little high. I have SI, and DI on my Helix and still use 2D a lot. You can usually see the thermocline easier in 2D and it is easier to find the life zone. My SI/DI transducer is mounted tight under the jack plate to protect it, I kept breaking them off as a skimmer, my 2D shoots through the hull. Over about 6 mph on my boat you lose the SI/DI and get the 2D through the hull.