Hey there from NJ. I just got my first silver for this season. A 1920 Merc found in my little backyard. The AT Pro got a confusing signal but there was a consistant hi pitch in the mix. I dig all repeatable signals. The hole was about 4" in diameter and 5" deep. First I pulled out an old rusty piece of steel and when I put the PP back in I picked up the Merc about an inch away. It pays to dig "iffy" signals. HH. Matt