Actually it's close to other formulae in commercial production before the ASA speed system and it's chosen test developer were agreed on, Agfa 44 / Agfa Ansco (GAF) 17 is one of them. As you wrote in another thread 75-80gm per litre Sodium Sulphite is the optimum maximum level. When I used Adox Borax MQ commercially in the 1980's I supplied it to 2 commercial/advertising photographers who felt it was slightly better than D76.
Originally Posted by Gerald C Koch
A Phenidone versions would give an increase over Adox Borax MQ, ID-68/Microphen fits into this category, that's 2 steps from D76.