Hello. I have tried a number of combinations and what works perfecly for me is the following: asa 32, 2 1/2 min water pre-soak, develop in pmk double strngth (for one roll of 120 film: 12 ml solution A, 24 ml sol. B, 600 ml water) agitate first 30 sec continuously and then two full inversions every 30 sec, and fix in alkaline fixer (2 1/2 grams sodium metaborate, 160 ml amonium thiosulfate 60%, 540 ml water. No sulfite to maximize stain, but use as "one shot fixer"). Stunning results! Very, very cool film. Hope this helps.(posted 8485 days ago)