I don't know if this helps, but I've been developing OLD Tri-X rated at 200 for printing on Azo in Pyrocat HD 2:2:100, 70F, in trays for 14 minutes. What I read in other threads is that people are using their old Tri-X times for new Tri-X in developers such as Rodinal, HC-110, D-76. The consensus seems to be that Kodak's published times are wrong (too short) for some reason.
I've been developing new tri-x (ei 160) a bit longer than the old tri-x. in pyrocat HD 2:2:100, in a Jobo, at 68F, I've been developing for 7min for high contrast subject and 9:30 for low contrast subjects. if I do the math right, that's about 16% longer than the times I used for old tri-x. I print on multi contrast paper.
Thanks to everyone who responded. I came away with the impression that my best bet was to start with my old times for Tri-X, which was 15 minutes in PMK at 70 degrees (EI 250). But, never being able to leave well enough alone, I decided to use Pyrocat-HD and semi-stand development. So, following Sandy King's instructions, I developed for 24 minutes at 70 degrees, with one minute continuous agitation at the beginning and 10 seconds every three minutes thereafter. The negatives came out just fine. This was 35mm roll film, since both my medium format cameras were down at the time.