I was given five rolls of this and I have just used the last roll. It has taken all five rolls to work out the development. Using the times stated on the Project Double X website for Microphen, I got very dense negatives initially when using it at EI 400.
I have since reduced the development time until I got it how I liked it. I am now considering if I should buy a bulk roll. unfortunately, I gave away my film loader last year!