My dad insists he buried a tobacco tin full of indian heads and buffalos when he was little. The farm is still in the family and we've looked for it on and off since I was fifteen (actually, about everytime I get a new detector)....no one seems to be able to locate it. I figured maybe the VDI on the MXT could offer some assistance...anyone know what the VDI of tin is? Would it be different for rusty tin?