Sure fun to watch! I was surprised by some of the areas you pulled fish out looked like nothing more than a beach we'd park the houseboat. You also cover territory fairly quickly which I need to work on.
We don't, we would be whatever is below a novice with electronics. We do use it for gps, water temp, and depth while trolling. I guess the only other way we've used it is we will occasionally graph areas where boils had just happened to see if anything is going on below.