If Yamakawa did the chari expecting that the expert O-harima would be able to use the chari in good way, Yamakawa is considered to have had a good technique; however, this is doubtful.
「名人、大播磨なら大丈夫」とばかりに山川がやったとしたならなかなかに巧いとも言えるが、あくまで結果論であろう。