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Definitely true! It certainly isn’t x-ray vision but just another way to obtain information about what’s in the ground. I try to train my ears to spot subtle differences in tones and certainly the target ID helps but the 2d screen on the manticore has helped me see on several occasions that I was dealing with two or three separate targets under the coil and even that one was ferrous. It’s amazing on occasion to call that I have a penny and a nail beneath the coil and then dig a penny and a nail (and having obtained that information from the 2d screen). It has misled me before too on several occasions but I am a big fan of getting as much data as I can and then learning to interpret that data is the art.
I had a vertical streak thru my 2d screen, yet it sounded good, and 27 popped up every now and then. What did I dig up? A v nickel at 7 " and a small nail. Yes, aluminum often reads out as a round spot on the center line. But the ID number will tell you its a 99% chance its aluminum. A nickel reads 26-27 most of the time, the only aluminum that reads 27 is a tab that's separated from the ring.
Did you see any another signal after the nickel was in hand with the Manticore after digging? I won't pass up any 26-27 Vdi if it is repeatable at all. Honestly, I never rechecked a hole with the 2D display after finding a nickel.
