.......interesting that you use the phrase "SILVER numbers"
just by way of learners info to JC, i have had my Etrac for 4.5 months
and literally am just now becoming intimate with it...actually learning to use it properly
although in that short time...and being a total dunce as to the machine's capabilities...i have found 45 silvers
and lots and lots of stuff i never found before....so on balance i am happy with it
and am sanguine about the future because i am just now starting to "get it"
but of all those silvers, i can say that i had my suspicions on some of them before i dug them
because of depth!!.....not numbers
because of sound!!...not numbers
JC....the numbers will confuse you no end!!
just last night in a great old historic park, i dug an INDIAN at 32 conductive...a clad dime at 38 conductive
and a clad quarter at 42!!!.........and each time those coins popped out, i shook my head like..."wow, that wasn't what i was expecting!!"
so what IDX just said is absolutely the case........deteriorated iron items near a target....small brads/nails in a nearby clump of soil...a few scraps of foil wadded and unseen....there are myriad reasons why the numbers will be skewed
but the sounds usually will lead you to the promised land