The weight of an arrow - Starting with a heavy one (from 15.8g to 16.1g) in the morning, Kanzaemon decreased the weight of an arrow gradually, and in the evening, he used a lighter one (from 13.9g to 14.3g), they say.
矢の重さ…朝方は四匁二三分（15.8～16.1g）、次第に軽くして夕方には三匁七八分（13.9～14.3g）にしたという。