Here's a chart (not my test) I made of some detectors that in the test worked better for depth in mineralized soils. The CTX depth capability improves against VLF detectors as the soil mineral concentration gets worse. In other words, the CTX beats other detectors the most in bad soil.
![DetectorDepthResults-HighMinerals_zps9c6bc249.jpg]( "DetectorDepthResults-HighMinerals_zps9c6bc249.jpg")
Under average soil minerals the CTX falls a bit behind of some others.
![DetectorDepthResults-AvgMinerals_zps0829d769.jpg]( "DetectorDepthResults-AvgMinerals_zps0829d769.jpg")
Johnnyanglo
Under average soil minerals the CTX falls a bit behind of some others.
Johnnyanglo