hey Monte or anyone else who knows. If i already have a cibola and a vaquero would i be wasting my money on a silver? i read where people have both. Is there an advantage to having the silver in my stable of detectors? The way i look at it and please correct me if i am wrong the newer detectors have a ed180 disc vs ed120 and the have a higher gain. So would i not be getting less than what i already have if i purchased the silver or even golden for that matter?