I saw where someone was looking for results of nugget sens. on the newer gold bugs. I have 2 nuggets that I tested. They are glued to poker chips, so I cant give you there weights. But they are both small. The smallest is next to a normal size ink pen. These are airtest. Useing a 11" DD coil from a F75. In all metal the ground is factory preset at 82.7 with sens. at max. The larger nugget gives a reliable signal at 3", the smaller at 1 1/2". In Disc., with disc. set at 20 to help ID small iron. The larger nugget reads at 2 1/2" and the smaller at 1". Hope this gives anyone interested in the Goldbugs performance a little idea on how it works on nuggets. I tried the 5" coil also and didnt see any real noticeable difference in depth with the large coil.