Lei still recalls how, when he was an apprentice, his late boss Sung Ying would often have the apprentices compete to draw lines along wooden boards, moving their wrists smoothly at a constant height above the work, to see who could draw their lines the straightest and the quickest.
雷永順記得已經過世的老老闆宋膺，當時常常讓學徒們比賽，懸著腕在木板上拉線條，看誰拉得又直又快。