Some lines about Post-Script vocals
When Mark E Smith used voice effects and the like with The Fall, he decided how to manipulate his vocals but that's not possible in the case of Post-Script. As a consequence, he didn't have the last said about how to use his voice; that's why i think the vocals must've kept unmodified as that was his last vocalizations/deliveries (his Last Orders). Only Mark E Smith decided how his vocals have to sound (that's a key element of The Fall) and i'd have liked listening his raw vocals as that's 100% him; HIS VOICE BEING MODIFIED BY SOMEONE ELSE IS NOT HIM ANYMORE and he'd have hated it as you know he was the boss, the one that had the last said about the music. I understand this is a project (that I liked) that took some licenses in regard to his voice but that's exactly going against the concept of Mark E Smith and The Fall: Mark E Smith total control over his vocals/delivery/growls/shriekings.
As I write this I realize once more that Mark E Smith was a genius at the mic throughout 40 years, a music career that is still unmatched. Sadly missed, won't be another musical artist better than The Fall because won’t be a voice similar to Mes one, a voice that it's God's creation (as we all are).