I know Kuma Buki bestows extra hp, but does it only increase max hp and I have to 'heal' it up after I trance, like with bard's bagatelle of bravado?

Zo Buki, per help, gives immunity to paralysis and knock out. To me, the words 'knock out' sound like physical means only, so does it help against sleep spell/commune? Lullaby? Knockout poison?

In that it boosts both current and max. Obviously you can't trance if you've just been fighting though, so the similarity is limited.

Caveat: No first hand experience, but something someone who took it said gave me the very strong impression that this is how it worked.

nt