Only trouble is trying to determine when it is intentional. For example, Levi thinks the Campos black star was a correction of an error and not a print defect. Who knows. I agree with you on the 62 greenies. The pose differences occurred as I understand it when they changed their contracted printer after the poor quality of the run that had the green tints. At least that is what "I heard"

. In any event i have all of them too just to be sure