I did a search but didn't come up with anything about Cure Free. Since some other pots were semi improved I would like to suggest this:
Currently Cure Free recovers: Silence, Bleeding, Poison, Curse, Reverse Orcish, Change Undead
Note: Reverse Orcish, Bleeding and Change Uhdead are the exclusives on this one.
Panacea (one of the required ings) can additionally cure: The rest of the non-exclusives + Blind, Confusion and Hallucination
To the point: Would it be unreasonable to add Blind, Confusion and Hallucination to Cure Free as well?