Just acquired Yojimbo in my HD playthrough and went outside the Cavern of the Stolen Fayth to test out the new aeon and see how he looks in HD.
He was up against two Epaaj. I summoned him, paid him 1000 Gil and thought he'd probably do a Wakizashi. Imagine my surprise when Yojimbo nodded, heralding that he would use Zanmato!
Literally the first move he did in my game was Zanmato. Shame it wasn't against something stronger.
What experiences have you had with the ultimate attack?