Could this be used for a site to site DR test where the standby database is opened with recovery for the users to test and then log shipping is rebuilt from scratch by taking a backup of the primary and reinitializing the standby? Could we instead stop the log shipping jobs (bkp,copy,restore), open the standby for the users to test, take a differntial backup of the primary and use that to restore the standby, then restart the log shipping jobs.