With the 1198 and Helix, I use Fine/Fast and adjust the Sensitivity like I do with Side Imaging, that's it.
You use Side Imaging and its no different than that since 360 is Side Imaging that rotates.
With the ONIX and SOLIX, I used 2 for the rotation speed, otherwise the same as with the Helix.
The brush piles are on about 45 degrees slopes so the brightness changes as the depth changes. On a flat bottom, I can have the Sensitivity low enough to get better detail:
I had posted this before where a 10# 13 oz bass was after a school of shad: