Turned a four inch (or very close) plug yesterday where 350 pinpointer mode indicated four inches and coin was stuck to bottom of plug . If target indicated as a coin and its not, depth is affected. A flat can that rings up a coin an crude example. If in my trying to explain it,you imagine only so many possibilities programmed, an i.d has to be made so unit makes its best guess.There are times it has difficulty doing so, perhaps there are multiple targets or iron around and other situations. Your swinging coil over target repeatedly is where you employ your guess in combination with your detectors. Some targets like a bottle cap ring up coin but a slow swing back and forth shows a "wide " target. I usually suggest digging it anyway,though if lazy later in a hunt or heading out I leave them. Small targets also if miss i.d.,d same thing, depth guess will be off usually. A round metal object is hard to resist for machine even if it is not certain of its composition, do we want it to debate, or skip it? Its doing better than we are,l.o.l.. Pin point mode tells depth to target,its not trying to define target so its very different! Our need then is careful recoveries so if our idea of depth is off , though pinpoint depth is often very close,we don,t damage target in retrieving it. You will find in time you still get fooled on occasion because your trying not to miss a possible good target ,that,s fine. Once in a great while it pays off and you want to keep doing it.
