It's too bad, I think that the songs actually sound really cool in D (well, I guess D-flat. The originals were in E-flat), but Paul just can't sing, even with the tuning down. I saw a video of Love Gun from this tour, the song sounded so badass tuned down, but dude was basically atonally screaming the song and wouldn't even sing the chorus.
Brocas Helm/Hatchet/Exmortus/Midnight Chaser 11/22
High on Fire/Kvelertak 12/12
Exodus/Nails/Hellfire (???) 12/20
Neurosis/Bl'ast!/YOB (???) 12/29