Oar Vs. Katana (curtain rod)?
Why did Miyamoto choose to discard his katana to fight his greatest duel with what is essentially a stick or homemade baton?
Another question is wouldn't the somewhat vain Kojiro take this as an insult? Also, note that he rejects prayers and well wishes, because he wants the victory to be entirely his own. Wouldn't a supposedly inferior weapon be an unfair advantage to Kojiro?
My theory regarding the first question took me a while, but is it Miyamoto somehow reconciling himself with the reckless Takezo? (Recall in Samurai I, he spent half the film whomping people with a stick or baton)
As to the second question, my take is that Kojiro is so obsessed with fame and status, that he doesn't care how the duel is won. Or perhaps he is frightened of such a worthy opponent. Although, I'm not sure this answer satisfies me.
I watched the trilogy only once, so I don't know if I may have missed something. I'd love to hear your own take on these questions. Thanks!