I used esun petg black at 80 on bed and 247 on hotend.
I used as little as possible on the supports in simplify3d.
Speed I used was 60mm/s
This is a great file worked well for me
How is sanding/filling for PETG? I have been near-exclusive to PLA but would love to try PETG for a helmet/mask if it isn't as hard to work with as I've heard