Definitions for "Over-run"
Quantity of paper that is manufactured beyond the quantity specified.
Printing of more pieces than specified. Make-ready sheets and spoilage play into every press run, so more sheets are run to account for this. Industry standards allow for 10% over-run or under-run. Duke allows 5% over-run billed at a lower rate.
When large quantities of items are produced, very often, more pieces are made than an order calls for. These extra pieces (or over-runs) are made as replacement pieces for any rejected pieces found during final inspection. It is often less expensive to produce over-runs than it is to repeat equipment setups for the purpose of making a few replacement pieces after final inspection.
Keywords:  hounds, scent, foil, shoot, shifted
Hounds shoot past the line when the scent has shifted by a change of course or foil.