All local drives and sys state on old policies.

New to Netbackup, only 1 year experience.  I just found out that ALL_LOCAL_DRIVES captures system state.  I just upgraded to 7.5.0.6.  I have some old policies that have ALL_LOCAL_DRIVES and system state in the backup selection of the policy.  Am I duplicating data or is NBU smart enough to know that system state was backed up by ALD's?  Do I need to go back and remove system state from my selection?

Thanks,