To me it looks like you are a little hot on your sensitivity Since I do not look for structure only fish. I keep bottom darker so the white marks from fish will pop out more. When I am searching with SI I have my screen scroll speed higher so it will stretch fish marks making them easier for me to see them. Crappies and Sunfish are not that big and the higher scroll speed helps discern them from the bottom. Once I find fish then I will slow chart and come from different angle to define what the fish are relating to if anything I ALWAYS have my SI Enhance up so I can make immediate adjustments as bottom changes..