you're only supposed to print exactly the number of ballots you need to send out to the registered voters

Can we stop with the bullshit claims that the commenter (you in this case) clearly just made up?

They print ballots before they even know how many people are going to request them obviously, so there would never be an exact match like that. They have a supply that they pull from as the requests come in, so obviously it would be incredibly unlikely that the requests exactly match the number printed.