Thanks everyone. Develop longer as in push a stop? For this session, the negative is Tri-X 400 from my Olympus XA4, developed in D76 1:1 for 9:45. Fresh everything.
I also use the dialed in filtration, and I have the equivalents from the insert that ships with the paper. (I'm using the Kodak line.) I did some tests a while back and found that the results from the physical filters versus the dialed in filtrations weren't always the same. Maybe my filters are faded (?); anyway, it was a casual test.
Here are some examples. I like the shadow detail in the top print (grade 2 dialed in) but the blacks aren't very black. The bottom print has blacker blacks and good contrast but the shadow detail is gone.