You were asking me about my settings,etc. when using my Compadre. I told you that I turned the knob to the i in iron. Yesterday I had more time than normal to hunt & try different things, I was in a tot lot that was all wood chips that was surrounded with 4x4 beams, and about every 6 inches was an either a large nail or a small bolt securing the 4x4's in place. I turned my disc. all the way down as far as it would go and began scanning my coil over one of the bolts in the 4x4's turning the dial up slowly without looking at where the dial was, the spot where the bolt quit responding was right in the middle between all metal and iron. So now when hunting I will be setting my dial to that spot instead of on the i in iron. Just thought I would pass this along. Steve.