I started to test the Legend in my yard. I had 1/10th gram up to 5-gram nuggets, high-grade gold specimens, and a 38-gram nugget. All of the below 5-gram nuggets had a VDI of 11. The specimens returned a Vdi of 11. The 38 grammer rang up a 26. I was stopped in my tracks and sort of confused because of the threshold. The threshold tone and the gold tones are different and when the gold tone sounds the disconnected threshold sound continues in the background. When I get a chance I will get back out to play around with it a little more.