Took my son with me this past weekend for a short relic hunt. My son is slowly warming to this hobby. Hit a site I have hunted for over 15 years. ALL the relics found ranged from 5" deep (the eagle button back) to 10" (one of the minies). The 10" deep minie was a really faint signal that again was alternating from low soft iron grunts to high tones with good 70 numbers. Also got one signal that was alternating iron and high tone...5" down a square nail, rechecked the hole...now high tones reading from 82 to 88...was real excited as that would be silver and being under the square nail at a Civil War site should be a seated coin....alas, was a 58 cal minie...I have NO IDEA why the minie read that high. I have NEVER had a bullet read up in the 80's....and yes, I checked the hole again. Anyways....love my G2 with Ultimate coil... best machine for me I have ever found!