if my memory serves me right, efke film ysed to be known as Adox r14 andr25
and I used to develop in Neofin red for high speed and Neofin blueblue for fine grain.
can any out there confirm my memories.
I can't confirm the Adox bit, but I used to develop EFKE R17 in Neofin Blue.
I developed some days ago my first 4 sheet of 8x10" PL 25, exposed at 12. 6'30" in ABC 2:1:1:15 (standard dilution will be too strong) are a bit too long for my N-1 negatives. The film is less yellow sensitive than current panchro films, a yellow filter might be standard for outdoor use. Be very careful with the emulsion, it's very sensitive, I've got two films slightly scratched, it almost never happens with other films.
If I remember, Aaron Van de Sande tried Weston's formula.
Pl25 is the only available film that will expand normally in weston pyro. I didn't really see any difference between Weston pyro and straight pyro, except that Weston pyro is much slower, so you have more control, and you lose 1.5 stops. One of these days I will order the stuff for pyrocatechol hd, a little slower and more controllable without loss of speed.