Live 3-arm x 15-run x 7-round A/B vs real DrussGT on commit 0f5cfe37.
Primary: surf ties strafe on round wins (37/105) and damage (255 vs 250/run),
both below tfil (45/105, 293/run; damage p=0.003). Incoming hit rate: surf
13.51% (worst) vs strafe 9.40% (best) and tfil 10.40%. So the plain surfer does
NOT dodge better and does NOT win more. Also records the j107 trap: strafe
dodges best yet wins fewer rounds than tfil. Next step: range/aggression A/B,
not a BitBrain upgrade.