Eric you just have to play with your new unit until you get used to it. I sometimes do a you tube search on the exact make and model of my unit and look for tips ...more and tricks.
Ok cool. Ya still learning how to read this new unit. Trying to set my sensitivity and contrast to work well no matter the depth. Seems like I'm always adjusting ...more it. Level 14 on both seem to work good. Thoughts?
Sorry just saw your question Eric. Yes those vertical lines are what I always look for when trolling around looking for active fish. You can clearly see the bait ...more fish (dense red parts of the pic) above them.