I bet you’d be surprised if you dropped a jig down one of those “barren” holes.
That's normally how I do it anyway.
I drop my flasher down then jig for a couple minutes if I don't get anything or see anything then I'll try one of the other holes I have drilled.
But in the original post he talked about guys using a camera and if they didn't see Fish they were moving on. Well my flasher does that too just a heck of a lot quicker!
It used to take several minutes to set up my camera in the hole at the depth I want and then trying to find my lure by rotating the camera.
I guess a flasher just fits my style better and gives me most of that information a lot quicker and is much easier to move.
Plus I'm looking at the entire water column at one time.
Something else I often saw in my camera was fish in the distance that swam under or above my lure and I never knew they were there till it was too late.
I have had so many times were a fish came in at a different depth than I was fishing I saw it on my flasher and I was instantly able to drop or raise and hook that fish.
It's interesting to learn how different people fish and use different equipment.
For the species I fish for and my style a camera just doesn't seem to fit in.
But it is cool that they're making this new smaller technology for you guys that like to use them.