Chuck, I have been nugget hunting for many years with various VLF nugget detectors. I have always preferred the Goldmasters, but that’s me. I always wanted one of the Minelabs, but couldn’t justify the cost or I’m just too cheep to buy one since I’m only a weekend prospector. But when White’s came out with the TDI the price wasn’t all that bad, so I thought I would give it a try. So far I like it. I have only found 3 small nuggets and they were all no more than 3†deep. I have found bullets as deep as 8†with good signals, so I think the TDI will probably suit my needs. I’m too old to be digging deep holes anyway. The area that I have been searching is loaded with basalt and drives a VLF crazy but I and many others have found nuggets there with a VLF. The TDI just makes it easier because it tunes out the basalt so it’s runs nice and quiet. That in itself is worth it for me. Hopefully I’ll find some bigger gold, but for now I happy with anything I can find……Rick