Vaulting and Storage Lifecycle Policies

Is there *any* way to use these together.  Here is my scenario:

I need to use SLPs to replicate MSDP data from our primary DC to an offsite DC.  That is working well.  However, I want to batch up writing older MSDP images from disk to tape.  Vault has always worked for this functionality *very* nicely.

So I configured a vault to start rolling images off the MSDP to tape - only to receive the "images failed: Already duplicated" message. 

Is there any way to use vault in this manner?

Thanks,

-Mike-