rung rung-00100   knob rerank_weight   probes 26 (13 current / 13 history)
baseline at the shipped default 0.0: 19 / 26 right

   value    right  fixed  broken      cur     hist   verdict
     0.0   19 / 26      0       0   11 / 13    8 / 13   baseline
    0.25   19 / 26      0       0   11 / 13    8 / 13   0 broken, 0 fixed — no effect
     0.5   19 / 26      0       0   11 / 13    8 / 13   0 broken, 0 fixed — no effect
     1.0   19 / 26      0       0   11 / 13    8 / 13   0 broken, 0 fixed — no effect
     2.0   19 / 26      0       0   11 / 13    8 / 13   0 broken, 0 fixed — no effect

HEADROOM, observed, from the rows (ADR-RS decision 22b):
  improvement — probes not right at the default: 7 / 26
  regression  — probes right at the default:     19 / 26

🔴 NO value moved a single probe in either direction — the knob does not reach this corpus. Inconclusive, not a null.

per-probe rows (130) -> work/regression/2026-09-12-priors-and-tables/evidence/sweep-rung-00100-rerank_weight.jsonl
