I used to dig all zinc and copper cent signals for years.
I still dig the copper ones because they could be old or some kind of jewelry but sometimes I just pass by the zinc ones if I am very tired.
Here is just one 3lb can of different cents I dug in the past and there were a few more of them besides this one.

After tumbling and cleaning them I took them all to a Coinstar and cashed them in.
Despite losing about 10% they still bought me and the wife a couple of very nice dinners so they do add up...eventually.
I still always dig low zinc signals every time especially if they are solid because, well, every one of these came in at very low zinc just past where tabs end and zinc begins.
Also I still dig regular zinc cent signals here and there especially if they are solid.
This treasure I dug years ago is why and always in the back of my mind when I get a zinc signal.
I hit the clasp on this thick and heavy silver man's bracelet once, it was the same exact number and behavior as a common zinc cent but this time it was not a zinc cent...it was shockingly better.
