I've found coins deeper with the Golden with the 7 inch ShadowX2 coil than I did with the LST with the 8 inch coil. No question the LST was hotter on tiny nonferrous targets than the Golden, bet I dug a bushel basket full of tiny foil bits, but I don't remember digging any coin over 5-6 inches deep while using it. I bought the LST, along with the 3X7, standard 5X10 and 8 inch coils, to use for relic and jewelry hunting. It ground balance perfectly in the mild ground here and was stable with sensitivity maxed but it just didn't have the depth to compete with the CZ's and Barons. I never found any jewelry with it but it could easily hit tiny gold chains, like the one in the photo found with a Goldtrax Baron, in the tests I did with it, but had to be run at 0 discrimination and resulted in digging way too much trash.
I use the Goldtrax Baron in all metal mode for jewelry hunting now, it has staccato audio and an LED that lights when the coil is over iron or tiny foil. The necklace in the photo was in the iron range, gave the staccato audio and lit the LED but the staccato audio on tiny gold has a fluttery sound. Jbird calls it a "flatulent" sound. Whatever it's called it's a distinctive sound and lets you know there's something that needs to be investigated. The Goldtrax hits on gold rings with a quick, hard audio response, and also has variations in the all metal audio that allows some targets, pencil erasor bands and small foil, to be passed up. Bottlecaps give a distinctive response, and pinpoint big, but all tabs give the same response as gold rings. Not perfect but it's the best jewelry hunter I've used. The chain is 10k, penny for size reference.
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