I can lay a nail by a quarter with the pro and see the effects of iron on the numbers.Your quote
yes the vdi will be different with both iron and coin under the coil at the same time BUT the tone will tell you that you will hear the iron grunt AND the other tone of a good target! learn to rely on the tones...
yes the vdi will be different with both iron and coin under the coil at the same time BUT the tone will tell you that you will hear the iron grunt AND the other tone of a good target! learn to rely on the tones...