[quote=@IncredibleBee]
<Snipped quote by KoL>

You're forgetting two things. First of all, Kojiro was a real life person, and Musashi killed him with an oar.

Secondly, let's say we go by Fate's weird rules. The fabricated Kojiro conformed to the legend of Kojiro. In other words, Musashi would be stronger. Or rather, Kojiro would be fabricated to be weaker than a servant Musashi.
[/quote]

But Musashi cheated instead of 1v1ing him properly.