Fair enough, though the tampering Dutch did with the 40mm and its leafy shell likely diminished its potency some. Even still, coming out completely clean seemed strange. I'm not suggesting he should have been f**ked up, but some blood.
I own katans two (of average quality, nothing special). But Katanas are quite capable of making deep lacerations. I'm not talkign pulp Hollywood katanas, but in reality. I went back and looked at P2 though, and I the amount if the disk that went in was bigger than I though; you're right, a katana is extremely unlikely to cut that deep.
Still I stand that katana is capable of making enough of a devastating slice to the preds chest to kill it.