Flat lighting on subject area: forget high contrast development of TP.(posted 9181 days ago)Grain increase with PMK? It's another low-speed compensating developer, like Technidol. Before Technidol, Kodak recommended the POTA compensating developer for fine grain with TP. You shouldn't see much on an increase in grain. Additionally, the stain PMK imparts lessens the appearance of grain, from what I understand.
What size prints are you making from TP that grain is a real concern?