Hi,
Here is aq suggestion as per your requirement :onsite and offsite storage
Let both the jobs run as per the policy created (1st to B2D then to tape1 onsite)
Create a seperate Schedule Job to run 2nd duplicate job to tape2 (may be offsite)
-Select Duplicate existing backup sets
How to configure duplicate jobs in VERITAS Backup Exec (tm) 9.x / 10.0 for Windows Servers
http://seer.support.veritas.com/docs/256096.htm
Update us on the same and revert for any further Query
Thank you
Gauri