Layered Payments Simulator — VISA? preset
v4-style UI. Only change: single preset named VISA?. Charts removed. Includes Backlog delay (days).
Derived metrics
Backlog delay ≈ (L1 load per day ÷ L1 capacity per day). <1 = less than a day; >1 = multi-day.
Preset JSON
Export or Copy the JSON for your simulator.