Fish finder question and Lake O

[FishingNYS]

I have never had a fish on the graph but have had bites. Usually no fish, no bait, sens all the way up.  It works on the finger lakes. I just assume these fish are streaking in from outside the cone. Is this common or should we be searching more for pods like we do for stacked Lakers in the finger lakes?

[AnglingAddict]

What's your setup?  Head unit and transducer.

[FishingNYS]

Older Lowerance that came with the boat. I have a newer Garmin but I haven't put it on because the Lowerance worked on Finger Lakes. But it doesn't read the ball like the Garmin does. Garmin when trolling we can see the ball and fish rise up to it( Not lake O tested yet)