Hard to argue with those settings when you see returns like that. Keep in mind that things can change during the day, or lake to lake. Be willing to adjust your unit accordingly for water clarity, cloudy/sunny skies, etc. None of these things have 'set it and forget it' features. But I would always keep returnimg to my tried and true base--such as fishinranger has provided. Use that and tweak it to find what really is the best thing for you and your unit/ducer etc.