When fishing on a party boat for tog or seabass, I've noticed that your position on the boat is all important. I've figured out where the transducer is and when fishing right on top of it, I can outfish anyone, while if I'm 10 feet off the transducer, I might get nothing. From observation, I've seen this same thing happen to many other anglers. Being right on top of the structure is all important. Of course, this doesn't work when drifting or when fishing for scup which seem to move around more than tog or seabass.