Has anyone ever put together a fine grain developer based on ascorbic acid alone? Think something like XTOL but with more isoascorbate, no Phenidone, and a stronger alkali like maybe sodium carbonate instead of Sodium metaborate. Presumably it would require long development times, but I've never seen that as a drawback if image quality can be improved. I guess film speed would be reduced. Would a long development time necessarily mean higher fog? Anyhow just thinking out loud. Actually as I write this I'm realizing an ascorbic acid-carbonate developer might essentially be a Caffenol-type developer (since my understanding is ascorbic acid is likely responsible for most of the reducing action in caffenol anyway). But caffenol doesn't have sulfite, or a restrainer.