I don't think we often see Yōmu depicted with lore-accurate Rōkanken? Akyū asserts that it's way too big for a normal human to use – which I assume means too big to use with just one hand, 'cause anything bigger than an ōdachi should be outright impractical to carry around even if you have the strength for it.

A dual-sword style where one of the two swords is actually a two-handed sword is pretty dope. 🤔 But does that mean the "shorter" Hakurōken is actually a regular-sized sword by human standard?