Just like the kids on the centipede, the messenger in the visit to Baijiao comes to the role in the traditional way. No choice of messenger is final until the temple authorities have consulted with the Great Emperor Baosheng and thrown the divination blocks.
上白礁的報馬仔與蜈蚣陣一樣，仍舊遵照古法來進行，經廟方與保生大帝溝通擲筊後，才能確定是由那一隻牛來擔任。