The pay you receive for each box is the "average" amount of time to deliver. In that average there are boxes that receive NO delivery on different days, therefore you are not paid to stop and "check" every box.I fail to see where this is an "extra" task. We are paid to service each box every day as part of our evaluation. As a non L route, I'm paid 2 minutes per box.
ANY order given by any manager must follow in the same work that was required of you during your last count. If you were not required to check every box then, you can grieve this NEW order requiring your base pay to be increased. Any political mail being now required to be written on or placed in different places than your last count is also payable. Regulars should be paid on form 8127, and Rca's on a green card, for ANY new work.