Keep persevering. I'm still learning about PMK myself, but I've gotten some very encouraging results from it (with Tri-X and Plus-X; oddly, my Ilford results, with both the Delta films and the traditional emulsions, have been disappointing thus far, but I haven't tried Pan-F yet).(posted 8263 days ago)Agitate like a madman. Pyro oxidizes very rapidly. I give three very violent shakes of the tank every 15 seconds. I use a one-minute running wash, fix with TF-4, two minutes in running water, two minutes in the used developer, and fifteen more of wash. Tri-X and Plus-X stain magically. (I get base fog with Plus-X but it's not objectionable.) I used Hutchings' recommendations for time and EI for both films.