Smarter SLP or Vault process

Idea - improve logical process SLP uses to determine which jobs to run.

I currently use Storage Lifecycle Policies (SLP) extensively. I find they have improved my efficiency tremendously.

However, since many of my policies create backups that do not fill a tape, a later backup can be using that same tape.
When the SLP starts, it requests and reserves the source tape and a destination tape drive. If the source tape is busy with another backup, the SLP queues up (which locks the destination drive) until the source tapes is freed up.

Here is my idea -
When the SLP agent checks to see what SLP are not complete, check the source tape to see if it is in use BEFORE allocating a drive.
Instead of just doing a FIFO (first in first out) process, add in a check so available jobs can be started. Perhaps priority can be taken into account if there are jobs which need to be queued up and run regardless.

I backup to a VTL and then to tape, and can find hundreds of jobs queued waiting for source tapes - behind a log jam of a few jobs hogging the destination drives.