Was out at my favorite ballpark and had decided to use the sniper coil at sensitivity 2 to have a chance at one particular spot nobody dares hunt-full of screwcaps (deep) and large metal scrap. All of a sudden I'm looking at a young guy with a shiny new Ace he got on E-bay and a shiny 12" coil to boot! I could see the desperate look on his face and when he told me his situation, I just broke into a laugh. He had the sensitivity at factory preset (6) and said he couldn't move the coil without a signal. After giving him my spill about the sniper coil for this particular area, I got him to set the sensitivity at 3 bars, got one of the large pieces of metal (about the size of a large screwcap) and waved it in front of his coil and he picked it up at almost 10"! I told him that was probably most of the signals he was getting. I told him that large coil was a specialty coil and great for wide open or low trash areas, especially where there might be a chance for old, deep stuff. Anywho, I think he's gonna stick with the Ace a little longer, and I got a look at that 12" coil and what it could do.