Beyond a cent, one would expect smaller mailers to begin presorting or that some presort firms would begin to take the mail of highest quality and presort it with optical character readers, probably putting on a barcode at the same time.
There is no way to sort or place bar codes on mail before it is sent.
mnli hypothesis: There is no way to sort or place bar codes on mail before it is sent. premise: Beyond a cent, one would expect smaller mailers to begin presorting or that some presort firms would begin to take the mail of highest quality and presort it with optical character readers, probably putting on a barcode at the same time.