I think most people do not leave the storage pool reclamation set to 60%.
Usually it is set to 100%. Then when you want to run reclamation you setup a
scheduled administration command to set the reclamation to 60%. When you
want reclamation to stop you schedule another administration command to set
it back to 100%. This way reclamation only runs when you want it too.
Offsite tapes can be reclaimed when they are off-site. This is done by
mounting the primary storage pool tapes to copy the data. This way the
off-site tapes never need to be recalled until they are empty. The offsite
tapes that are pending will remain that way until you get them back from the
vault and update the volume status. Hope this helps.

Mark