Too slow and you don't get a good id lock and you'll see alot of bounce. So don't be afraid to speed up your sweep. It won't take long to figure it out.
Second, the closer you can keep the threshold to 0, the more depth you will get. Threshold affects depth more than sensitivity. So if you have to drop the sensitivity from 8 to 6 or 5 to get it stable and still keep a high threshold setting, you are going to bet better depth by doing so.
Third. Think of the negative Threshold setting as a VDI sensitivity adjustment. That will automatically remove alot of confusion around it and how to use it.
Fourth. Don't be afraid to lower your theshold setting when you need to. It works really good at killing iron falses, micro trash, ground chatter etc.
Fifth. On the deeper targets in my dirt, it tends to raise the numbers. It may be my high mineralization that causes this?
Fifth. Get some clear vinyl and cut out two sections that will overlay your faceplate. Use a hole punch and punch out six holes in a piece of the scrap vinyl and save the punchouts. Lay the first peice over the faceplate. Stack three punchouts over the menu button, and stack three punchouts over the pinpoint button. Then lay the second peice of vinyl over them and press it together. Static will keep it all together and you have just protected your faceplate and raised the profile of the two buttons you will be using the most. Makes it much more enjoyable and easy to use.
and last. Don't waste time digging numbers above 50. For me 51 is deeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeep rusty iron that you will wear out digging, and 73 is major electical interference. or my pickup
Happy CoinStriking