I had noticed this before on deep targets.I have a silver dime buried at 9" and noticed I only get a good high tone with a medium to fast sweep speed.I get a weak high tone followed by a low iron tone when sweeping slowly and it is not what I would call a good hit by any means.How many of you all have tested 2 tone ferrous on deep silver and what were your results,Thanks Ray.
PS I was running with just the top line disc-ed out except for the right 1/5 maybe, for big silver
PS I was running with just the top line disc-ed out except for the right 1/5 maybe, for big silver