The new camera arrived, but I can’t really play around with it until it’s added to my insurance policy, and the guy responsible for that seems to be on leave.
The filter holder people basically said “you can keep one and return the other, or return both and get a refund”. In the end, the first one was the best out of the two. Best, as in “most salvageable”.
I’ve made more progress on fixing Surfing The Deathline – I figured out that the big problem was due to a mismatch in the appearance of translucency between RGB and CMYK black.
So now it’s just export run, check, fix, export run, repeat.