A conformance check run before the step that breaks conformance proves nothing
— the compaction moved 150 orbits and left 202 of their controls behind, and
the tool said '0 move' about a file that needed four.

Also records the answer to PLN's own d9 note: its attack was riding d12's
Ardour-learned level knob, and its mask shares d6's gate with no legal
alternative, because d9 has no button slot in the grid at all.