Whether you hunt with the All Metal Mode as your Primary, or Secondary, it is perhaps the BEST way to Analyze and Verify the Target as one that is desired according to your emphasis on Relics, Coins, Jewelry, Ferrous v Non-Ferrous. The AM Mode utilizes a standard first Filter and because Tarsacci has incorporated a moderate speed SAT or Auto Tune, pinpointing is fairly easy. But, as I have taught my customers over the years, the AM Mode is significant for Sizing and Shaping your target.
In addition, the AM Mode provides additional audio characteristics (more apparent in analog v digital).... This is what I term Approach,, Ramp Up, Peak, and Ramp Down as you leave the target. For instance; FOIL (1 to 4) on a MDT 8000 will be on average very short & sharp response on average. A Gold Ring can be 4 or higher and respond as follows. The Approach and Ramp Up in response is slower at the Peak, more of a plateau response rather than a sharp pointed response. As you leave the target the sound is smoother and more gradual. You who have used the Tesoros in the past have recognized some of these characteristics. With a Tesoro, even in the Discrimination Mode (Analog) you could train your ear to pick up on these subtle characteristics.
Earlier in the week, I was having a discussion with Aaron on better using the AM Mode to hear the difference on High and Low Conductors using the Selectable Frequency. I then put out a quick video to further demonstrate this. Available on Youtube. (1215) Tarsacci MDT 8000- The Important Significance of the ALL METAL Mode - YouTube