How does the Instant Book ranking work?

When a customer posts an Instant Book job, we show them up to 3 tradespeople ranked by a composite score: your rating, how close your price is to the area median, your distance from the job, and how quickly you typically accept jobs. It's deliberately not "cheapest-first" — undercutting on price doesn't guarantee the top spot, because rating and reliability also count. The customer can also click "show more options" to see all eligible tradespeople.