keep in mind,
The ctx will definately find the deep coins but you will need to know two things. One is that Deep coins dont always give a good number ID however, if there is a small red dot building, and your numbers jump or get close to or around the numbers your looking for then dig it. the sound will usually be good too, the numbers can jump around. but if I get one or two hits at 12 45 out of say 8 swings then I dig it.
The second thing you should know is that pinpointing at 10 or 12 inches is not always easy and you want to take your time and practice before you dig up a lawn or scratch a target.
If you increase your sensitivity too high to get more depth then the stability and reliability may suffer. If your on a nice lawn then id recommend you not try to max out anything/ work with a stable reliable set up and your numbers will get more stable. if you start finding deep coins and they are worth it then try raising the sens, but keep it stable.
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