The 2 most important settings in the HB SI units are ...:

*Chart Speed matched to boat speed for structure / a notch or 2 higher for fish ... (this is probably the most common issue with HB SI imaging not being satisfactory) ...

*SI Sensitivity up/down to brighten/darken the screen as bottom hardness and water depth changes ...

And pick a pallete color that works well with the current ambient lighting conditions ... Brighter palettes for sunny days / darker palettes for cloudy days ...

Rickie