Assure that you aren't collocating on the offsite copy pool tapes, and that partially filled tapes are not going offsite - that will certainly eat scratches fast. Obviously, offsite tapes need to come back to provide a replenishing tape supply. Be careful about checking in offsite tapes, as they could end up checking out before getting reclaimed, depending upon your processing. Deleting a copypool tape is certainly legal, but of course you obliterate that safety copy.
Richard Sims