Slow agitation applies for the first min and than 4 slowly agitate every min ...
Recipes & dev times using Developer Kodak HC-110
Adox/Efke CHS ART 50 in Kodak HC-110 1:49
13 minutes
Adox/Efke CHS ART 50 at 25 in Kodak HC-110 1:31
7 minutes, 15 seconds