Should be done after all sets are done, aim should be somewhere between BG and IWD volumes. This is to ensure that it doesn't need to be run multiple times (to decrease data loss on reconversions) and to ensure that only the files which are actually used are reconverted in their fixed form (so after recuts like TWD Aribeth or the manual depopping like on HoTU Maiden and HoTU Sharwyn are all applied).
Massively low priority and not a requirement for a potential 1.0.
Also needs to be checked to ensure that the damage/death grunts aren't misnormalized after a batch process.