Might be a dumb question but.

When jigging below the lock and dam's on the Mississippi for walleye and sauger, do they typically show up on your fish finders, or are they hugging the bottom so tight that they dont show ?

Last year my Hook5 did not show hardly anything, and in trying to adjust the sensitivity I got a screen full of dots. 

Me and technology dont get along very well .

Thanks in advance