The same hand-tallied ledger we've been writing in since 2009. Open it. Read it. Bring a pencil if you need to do the sums yourself — every figure on the truck matches every figure here.
Posted on the wall, written into the contract. Anything outside daylight working hours adds a flat surcharge — disclosed before the smith leaves the truck.
The two service trucks roll from a yard near the rail yards. Anywhere inside the marked ring sees an average response of 31 minutes; outside, we'll come, but we'll quote the trip first.
Average response, anywhere in the ring: 31 minutes.