Carol,(posted 8749 days ago)Mr Hutchings has an advertisement at the back of View Camera - I don't have a copy in front of me at the moment, but you could probably go to any film will pick up contrast as film illumination decreases beyond the normal parameters of usage. Also, although his times for "N" development seem OK as starting points, I have found that the N+ and N- times, and EI's, need some substantial change - which might be expected, of course.
I have found PMK to work extremely well with Ilford Delta 100, and Pan F+. For TMax1oo, Rodinal 1:50 seems to me to be a better partner.