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2466,"s":1,"d":-18.773346,"candidate_edge":355.601984,"comparator_edge":374.37533},{"seed":922053,"s":2,"d":-15.400147,"candidate_edge":303.626449,"comparator_edge":319.026596},{"seed":922089,"s":2,"d":-13.854991,"candidate_edge":541.678065,"comparator_edge":555.533056},{"seed":922484,"s":2,"d":-13.667392,"candidate_edge":145.947081,"comparator_edge":159.614473},{"seed":922222,"s":2,"d":-10.03516,"candidate_edge":183.820702,"comparator_edge":193.855862},{"seed":922076,"s":3,"d":-8.462208,"candidate_edge":848.21026,"comparator_edge":856.672468},{"seed":922485,"s":2,"d":-8.337689,"candidate_edge":99.811531,"comparator_edge":108.149219}],"off_target_zero":false,"notes":"Simulator b244530 unmodified, default config, 2000 steps, single process, no --workers/--sandbox; engine.run called directly per seed in chunks of 50, C and K on the same seed. s from step-0 competitor best quotes (one-sided books: 0; s != config spread_ticks: 0). se=sample sd(d)/sqrt(n). Spread 4: d==0 on all 120 seeds; off_target_zero false per brief. Spread 1 includes seed 922263 (d=-65.08). Winner = sign of mean_diff, not significance; compare with 2*se. No tuning, no code changes."}