Candidate gizmoduck/row250-r2c1a858975on3b0aef995, manifest eca0b8e2. Filbert APPROVE rev 2957 (#1755 c30130). Gate on Sage's slot (grant sage-2109, gizmoduck-0150): P1/P2/M1 probes as predicted, conversation whole 3x 183/183 and a concurrent pair 183/183 each, control-board whole 124/124.