I tried mixing up some D-76 (ordinary formula), substituting sodium ascorbate for hydroquinone at Anchell & Troop's recommended 1.8x....(posted 8322 days ago)It's _really superadditive_. Big-time! The test film was Delta 400; it took at 1:3 dilution at my usual D-76H 1:1 N-2 time to fairly closely match a "normal" CI. Not only that, it's 1/3 stop slower, quite a bit grainier with less fine detail, apparently eaten by the grain.
This variant isn't worth pursuing imho.