I hope these "crib sheets" are correct, if not add too, or take away from. After reading most of mike H. Post I started taking notes. This is what I came away with. Starting out: gain @ 70 threshold @-9. Disc. @ min. Run d2 or d3 mode until ya get the hang of it. Metal mode: gain @ 30-35,threshold @ +1 - +2. If you want high gain, lower your threshold to 0 or into the negative numbers. High trash area: gain @ 70, threshold @ 9. Notch out iron, foil, tabs, and .50 cent. Running hot: gain @ 90,threshold @ 0. Or gain @ 50, threshold @ +5. Machine may chatter when still but stablizes when swung. This is for greatest depth in clean ground (woods). Use a 1 second to 4 ft swing speed. And look at bill ladds video! These are just some of the notes I took to get me started, I hope they can help and if mr. Hillis finds me wrong, (please) correct me as I will be using these notes in the field to get started!