Enter TOP pins (no bevel) from top to bottom, then the BOTTOM pin (beveled key pin) — A2 only
Instructions: Measure each chamber\'s stack from the TOP down using your gauge. Enter all Top Pins first (drivers/masters — no bevel), then enter the Bottom Pin last (key pin — beveled). Validation enforces A2 max stack height of 23 and A2 key cuts 0–9.