TCK73 - I don't know what kind of fishfinder that is but WOW great screen shots. Not a lowrance or Hummingbird unit. What type is it.
I have a Lowrance and gets pretty good pictures.
For advice, look for the long noodles. Whites, Stripers and Hybrids look like noodles on the screen. The noodles which connect to the bottom are more likely to stay in one place when jigging then suspended ones.