Recently my hunting buddy sold his Explorer II with 10x12 SEF coil and bought a used Cibola. I have nothing against Tesoros and I am partial to the Vaquero. Anyway, this evening I located what I predicted to be a deep penny at roughly 10 inches with my Explorer SE. This was next to a piece of iron and I was getting jumpy readings of between 11-28 19-29 and a nice high tone next to nulling indicating iron. I am using the settings suggested by Bryce-IL. Pinpointing was impossible so I had to approximate the center using the tone ID. My buddy came over with the Cibola and I asked him to see what he thought of this target. The Cibola would not pick this up even when turning the disc all the way down. Digging this target produced a wheat penny at roughly 9 or 10 inches. I think my buddy has made a mistake but oh well. He did find a ring and an old money clip though.