David, I've posted on this subject several times before but can no longer find the posts on APUG.

I'm not EXPERIMENTING with Ansco 130 as a film developer - I'm using it routinely as a Semi-Stand film developer (with excellent results).

The Ansco 130 formula I'm using (Published in 1938 by Ansco) - I posted this on APUG years ago - can't find it on APUG.

Ansco (Ansco/American Agfa) 130 Paper Developer

Water (125 F or 52C)-----------------------------750 ml
Metol*-------------------------------------------2.2 grams
Sodium Sulfite (anhydrous)------------------------50 grams
Hydroquinone-------------------------------------11 grams
Sodium Carbonate (monohydrated)-----------------78 grams
Potassium Bromide---------------------------------5.5 grams
Glycin---------------------------------------------11 grams
Water to make-------------------------------------1.0 liter

With Kodak TMAX 100, I dilute Ansco 130 stock 1:20 with water and develop semi-stand for 26 minutes at 22C. This should be a good starting point for Kodak TMY-400 as well.

With Efke 25, I dilute Ansco 130 stock 1:20 with water and develop semi-stand for 18 minutes at 22C.