Merrill, Really appreciate your videos and knowledge, Anyone Please help, Built new 12" test garden first of May 23, Zinc, 1946 penny, 1964 nickle,Clad dime, 1954 dime,Clad quarter and 1945 quarter all Two foot apart and measure depth at 12", laid flat and tamped soil down, all original dirt from the hole. Right out of the gate the only coin I could read is the nickle. All-Terrain General, nickle doesnt care what recovery and sens down to about 12. Still can not read anything that I would dig it. Have changed to all different settings, modes and combinations, Once I did get a good signal from the 45 quarter in Prospecting Audio Theme. In one of your videos I see you test gardened a quarter with the Manitcore at 14", Why can I not get even 12" from anything except the nickle?