I'm about to say good bye to the ATPro, I'm just not finding enough silver with with it. Today gave me a little faith with my finds , but I am so confused with it's ability on sorta deep silver. The coins today were about 4 inch's deep, the brass and copper stuff were deeper. I guess it gets my goat when I can find a brass tack head down at 8 to 10 inch's, but not the silver.It Maybe location or other factors, I don't know . Anyway, U gotta think positive
