What a great article. It's time for me to mix some up and try it. One part of the mixing instructions I was not sure of, mixing part B. When you say that the "The total amount of solution will be slightly in excess of 1300ml" does that mean that the instructions for part B actually make 1300mL?
In other words, if I want to make 1000mL of part B should I use 769g of potassium carbonate?
Most formulas end with "water to make 1000mL"
I've avoided trying Pyrocat-HD because I thought it might be a little grainy for my small negatives, but I'll give it a try.