Just bought this unit from Gotsilver and will be using it down in the Fort walton Beach, Panama, and Siest Key Fl in a week from now. would like to know a good place to start with the settings as i have read that some just adjust the threshold and volume once they have got them where they are happy with. I ordered the straight shaft and knob cover from Pl$%^#R. So i know i need to get acquainted with this unit but would like an edge to get started.HH