In 2007 I was sent a prototype of the White's PulseScan TDI to test, and I was so impressed that I decided to put the new model into service at my "pay-to-mine" operation at Moore Creek, Alaska as soon as it was available. Moore Creek has mixed hot rocks that severely impede the performance of regular metal detectors. I lobbied for and got four of the very first units off the production line in the spring of 2008 and those detectors were provided to visitors at Moore Creek that had no detector o