Green arrows point to the bump is actually a school of fish close to the bottom.
Boulders look similar sometimes but the Aqua-Vu is the proof.
Comparison shots from Lowrance Live with Airmar TM 150 transducer and Humminbird Helix G3 Mega transducer. They were taken at same time but the transducers are 4-5 feet apart so it will never be identical conditions. I think both are good. Humminbird finally has good 2d sonar with the new Helix G3 Chirp Mega transducer.