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earthmansurfer said:Interesting to see how that large coil will work in fields as well as how the detector is balanced with it.
Critterhunter said:earthmansurfer said:Interesting to see how that large coil will work in fields as well as how the detector is balanced with it.
I'd like to hear if that big coil (the one bigger than the stock coil) is showing increases in depth on coin sized targets? I've always figured about the max coil size to still get deeper on coin sized targets was about 13 or maybe 14" in a DD coil. Less than that for a concentric, probably around 10". Might be a stretch for 12" in a concentric in terms of still retaining good sensitivity at depth on coin sized stuff, as DD's appear to hold that coin sized sensitivity at bigger coil sizes. Of course all this has to do with your soil too. I found the SEF 15x12 actually got less depth on coin sized targets in my somewhat mineralized soil than the 12x10, while I've heard others say in their more neutral soil the 15x12 did get them dime sized targets a bit deeper.