This was two hours of working any choppy, tiny, repetitive mouse fart hint of a high tone, with phones turned up. The patch of brush has been spanked hard for decades and I did every trick you folks taught me. I was one bar below max because max gave too many occasional squeaks, I ground balanced then dropped it down by five. All finds were deep and choppy\weak signals.This was likely the deepest silver that I've ever dug with the ATP, and considering the location, one of the most satisfying.