Problem with hummingbird helix 7 chirp g3

[Bankangler]

Here is my Helix 7 on the bottom On 200 kHz and 859 at 83 kHz on the top Both have skimmer transducers and I have the transducers mounted so the middle of the transducer is flush with the bottom of the boat and not transducers are tilted slightly down in the back. I can mark fish at 25 mph on both units.