Can someone educate me, why is it fool proof?

What kinds of tones does it have? Is it closer to Rodinal or HC-110 in sharpness vs grain etc?

Nearly forever is Rodinal... So there's more than one nearly forever? Lol


Mamiya: 7 II, RZ67 Pro II / Canon: 1V, AE-1, 5DmkII / Kodak: No 1 Pocket Autographic, No 1A Pocket Autographic | Sent w/ iPhone using Tapatalk