I fished with flashers for many years before moving to graphs. In fact, I have a Zercom flasher in the dash of my boat that I use for navigation at high speeds. It gives real time information. My only suggestion is to turn the gain up until you are receiving two bottom echos, then barely back off until the second one disappears. I caught more fish with a flasher than with graphs, I spend too much time tinkering with the graphs. Good luck.