[surfisher]

I currently use the Elite 7 Chirp on my boat, 50/200 and 455/800. The Downscan will read all the way to 300'. I have marked schools of yellows on it to that deep, but using chirp or 200khz is my preference. Takes a trip or two to dial in (like any fishfinder), and will take a little getting used to reading the downscan, but what I can say is it makes finding bait 100x easier, and you can distinguish game fish way easier. They will show up as a bright dot (thicker dot for bigger fish) instead of your normal boomerang like the high chirp will show. When you meter a bait school, there will be a hundred tiny little dots. Super nice to use!!!