rung rung-seed   knob rerank_weight   probes 26 (13 current / 13 history)
baseline at the shipped default 0.0: 21 / 26 right

   value    right  fixed  broken      cur     hist   verdict
     0.0   21 / 26      0       0   12 / 13    9 / 13   baseline
    0.25   20 / 26      0       1   12 / 13    8 / 13   BREAKS 1: p07
     0.5   20 / 26      0       1   12 / 13    8 / 13   BREAKS 1: p07
     1.0   20 / 26      0       1   12 / 13    8 / 13   BREAKS 1: p07
     2.0   19 / 26      0       2   11 / 13    8 / 13   BREAKS 2: p07 p26

HEADROOM, observed, from the rows (ADR-RS decision 22b):
  improvement — probes not right at the default: 5 / 26
  regression  — probes right at the default:     21 / 26

🔴 NO single global value clears the 0-broken bar. Every value that fixes a probe breaks another, which is the pre-registered answer NO — and it is a result, not a failed run.

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