Shawn,(posted 8916 days ago)Should you decide to get a densitometer, be aware that the PMK's yellowish stain will throw off your density readings somewhat. My initial readings of PMK negs on my densitometer resulted in strange densities; they did not agree at all with negs processed in other developers (D76, HC110, etc.).
Gordon Hutchings recommends a filter (I'm sorry, I don't have his book in front of me at the moment to tell you which filter!) for reading PMK negs with a densitometer.
Good luck, Sergio.