Spent about an hour detecting an old 1700's house site. Found lots of man made iron, junk and other trash. Among all the trash I hear a nice smooth high pitched tone, registering at about + 76 VDI. I dig in and out pops this beautiful button, approximately 4" in the ground. I was using the 5.3 Eclipse, relic mode, Discrimination at 1, theshold was just above audible, gain was between 8 and 9, gound was on lock after pumping the coil and grounding it. Gotta love the MXT!