heck ya...many,many times I've picked up individual fish, and either dropped or raised the rigger down to its depth and had it in the boat ...this last summer did this with springs off shore WCVI, coho and feeder springs(that were released) inside Quatsino Sound, both sockeye and chums up Johnstone Strait,
The sounder I'm raving about is the Furuno FCV620 which I just installed this past summer,
on one trip out I was watching(on the screen) a small zinger @ 100ft just off the bottom,my son and his girlfriend were jigging for cod at the time, and could see the cod going in for the bite!...
I cant say enough about the unit I bought,and would recommend it 10 out of 10