Bench log 2026-09-19: 11 lane sessions, no improvement

Daily log of the autonomous design lanes for 2026-09-19. 11 sessions across 4 lanes; none beat its incumbent. Failed searches are recorded so the same ground is not walked twice.

EPG (epg-faraday-v1)

• 3 sessions, 0 improved, 0 with every candidate rejected by a hard gate, 2 distinct regions, 0 planned by the model
• Best score today 0.9439; incumbent 0.9416, 4 sessions since it last moved
• Incumbent: awg=15, load_ohm=73.39, coil_count=9, coil_turns=1741, tube_id_mm=70.5, velocity_ms=0.2475, loading_scale=4.131, coil_length_mm=5, loop_length_mm=200, pump_efficiency=0.1, remanence_scale=1.6, spiral_pitch_mm=20
• Tried tube_id_mm=71,coil_turns=1700,coil_count=9,velocity_ms=0.25,load_ohm=73 ×2, best 0.9416
• Tried tube_id_mm=69,coil_turns=2100,coil_count=8,velocity_ms=0.25,load_ohm=73 ×1, best 0.9439

STEAM-RESONATOR (steam-debye-v1)

• 2 sessions, 0 improved, 0 with every candidate rejected by a hard gate, 2 distinct regions, 1 planned by the model
• Best score today 0.5169; incumbent 0.5169, 9 sessions since it last moved
• Incumbent: duty=0.45, cells=1, gap_mm=12, inlet_c=95, supply_v=2000, choke_ohm=1, length_mm=40, switch_hz=65210, water_ppm=106, inner_d_mm=3, pickup_ohm=1, rise_time_ns=0.1, dead_time_frac=0.02
• Tried inner_d_mm=3,gap_mm=12,cells=1,supply_v=2000,switch_hz=65000 ×1, best 0.5169
• Tried inner_d_mm=3,gap_mm=12,cells=1,supply_v=2000,switch_hz=150000 ×1, best 0.5169

VIC (townsend-v6)

• 3 sessions, 0 improved, 0 with every candidate rejected by a hard gate, 1 distinct region, 1 planned by the model
• Best score today 0.5017; incumbent 0.5017, 11 sessions since it last moved
• Incumbent: awg=24, turns=100, inductance_h=0.001
• Tried inductance_h=0.001,turns=100,awg=24 ×3, best 0.5017

WFC (townsend-v6)

• 3 sessions, 0 improved, 0 with every candidate rejected by a hard gate, 2 distinct regions, 1 planned by the model
• Best score today 0.5032; incumbent 0.5017, 11 sessions since it last moved
• Incumbent: ppm=2, cells=2, gap_mm=0.5, gamma_se=0.03, length_mm=101.6, inner_d_mm=15.9, temperature_c=1, surface_factor=0.25
• Tried inner_d_mm=16,gap_mm=0.5,cells=2,gamma_se=0.03 ×2, best 0.5017
• Tried inner_d_mm=13,gap_mm=0.5,cells=2,gamma_se=0.03 ×1, best 0.5032