Best way to restore database back to previous point in time

I have a question concerning the best way to restore a database to a previous point in time. My concrete intention is a little bit different from the usual backup-purpose. As I´m working on performance testing I´d like to have a fixed backup (or several backups) which all have a fixed state in time. I load such a state, run my benchmarks (which alter the database) and afterwards roll the database back to the state before I started my test. So when I restore my database I explicitely don´t want any recovery (because I don´t want the database to return to the current state). This is how my RMAN-script currently looks like:

 RUN {
  # shutdown and remount database to prepare for backup   SHUTDOWN IMMEDIATE
  STARTUP MOUNT
  # allocate output stream
  ALLOCATE CHANNEL ch1 TYPE DISK FORMAT 'F:\oraBackup\FullBackupNoPreload';      

  # backup complete database
  BACKUP DATABASE PLUS ARCHIVELOG;
  BACKUP CURRENT CONTROLFILE;
  BACKUP SPFILE;
  # free outputstream
  RELEASE CHANNEL ch1;
    }
    EXIT; And here is the RMAN-restore script I´m using:

 RUN {
# shutdown and mount database to prepare for restore / recovery

	  SHUTDOWN IMMEDIATE;
	  STARTUP MOUNT;



	  # restore and recover database 

	  # restore using the tag-name of the backup-file => tag name can be retrieved


	  # using rman>list backup;


	  


	  # Empty Setup, clean database


	  RESTORE DATABASE FROM TAG 'TAG20140319T155921';


	  # RESTORE CONTROLFILE FROM 'F:\oraBackup\FULLBACKUPNOPRELOAD';

	  # RESTORE TABLESPACE t01 FROM TAG 'TAG20140319T155921';

	  # RESTORE TABLESPACE t02 FROM TAG 'TAG20140319T155921';


	  # RESTORE TABLESPACE t03 FROM TAG 'TAG20140319T155921';


	  


	  # Revocer uses the stored transactions and trys to put the database back into the current state

	  # so usually we dont want to do that


	  # RECOVER DATABASE; 


	  


	  # open the database not resetting logs (they should be valid and thus reusable)


	  ALTER DATABASE OPEN RESETLOGS;
	  
	  SHUTDOWN IMMEDIATE;
	  STARTUP;