So, is this what you are attempting to do? The reason I'm curious is because of the extreme dilution and extended time you are getting with HC110-H. I use HC110 but do it to specifically reduce development times and due to the fact it is a liquid concentrate. I tend to develop all my films for 6 minutes and vary the HC110 dilution instead.
I would not recommend using year-old developer when running any sort of film test. Why introduce that variable?
Joe
No, I want to switch to a developer that is easier for me to store for longer periods and HC-110 is the easiest. I have to use my kitchen and my sessions both developing and printing can be far apart, further than I like but it's the best I can do. I'm currently using d-76 1:1 but it's problematic for me in terms of storage for longer periods of time. So, I'm testing with hc-110. I used it with 35mm and 6x7 for a long time, but tried d-76 when I went to LF last year. I like it, but want to change. Also, I was looking at my MF TMX negs and started to compare acutance between the two developers, I believe I like what I see in hc-110 (h) rather than what I see in the 4x5 with d-76.
Dilution H is recommended (at Covington Innovations) for twice the development time as Dilution B, but the curves have shown me that Dilution H provides weaker mid-tones than d-76 1:1. Many have said it before and they're right, you learn the most from a curve when it is compared to another curve. I hesitate to post another one but here are the two compared. They're both shown after personal speed is found and the "normal" development time determined.