I want to change the activity level of PMK for an experiment on film development. Contrast is too high and times are getting short (5:15 at this point and I'm concerned about dropping below 5:00). Has anyone done any work with dilutions and PMK? I'm thinking I should reduce the concentration from 1:2:100 down to about 1:2:125 to increase development times but maintain the same contrast level of the working solution. How does this sound, any suggestions?