I have hunted this old house many times and used almost every detector out there. I did well with the Vista X and the discrimination at 30. I decided to back it off to the pre-set and see what I would find. As you can see, there were targets that I left behind. A couple of them were surprising. A number of flat buttons, overall buttons, the campaign fob from the 1904 presidental race. It seems to do exceptionally well in the area of brass and copper with the pre-set.