Owassokie, that is a very good point. The impurity of earlier
Wheat cent coins send them in the reject bin when your target coin is a copper cent. I talked to Andy about it. I had an idea to use a zinc penny in the comparator and he said that will work if I'm going to brush through the copper anyway. I guess people who want the wheats and not just coppers will do that
Basically the way they work is you get one pile of one type of coin, copper, zinc, steel (like Canadian) whatever you put in the comparator, and another pile of everything else. Basically I will get a pile of zinc and the other pile will be coppers, canadians, anything not zinc. I'm just going to hunt through those :)