I spent 5 hrs today on a lake learning and setting up my new Helix Mega 9” and WOW. No comparesone to my 7” Touch HDS lowrance. What a depth finder. Hummingbird has outdone themselves on this one. The Mega rocks! And even tho there’s lots of settings and adjustments it’s really pretty easy getting used to it and the settings. Still a lot to learn tho. Love the Mega!!