i will post for you some info on the settings that i have tried, but remember each palette is a different color, and i have found needs different settings in many cases for viewing, depending on the light cast on the hds unit, particulary so witht he structure scan di and si, i have found, or else i just still dont know what im doing---and that could very well be true too! the auto is coming out fairly well on the sonar, i play with it, just cause i can, but depth , can make a difference.