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