With a lot of my films when I apply the Delta-X (sounds like a secret fighter plane) or the CI ruler my speeds tend to jump about.
Meaning some of my minus curves have more speed than the normal, and the plus curves too. etc..
Now not with all film, or should I rather say not with all developers.
Now some surface developers/compensating developers, or what ever they are technically called have a different spread at the toe region where the curve goes up.
What does one do here, or have I missed something again?
Can this be normal?