Jon,
I have also used and continue to use fiber-based Forte poly-warm tone
paper with great results. I am curious as to what developer(s) you use
with these papers. I have used dektol, though I find it preferable to
selenium tone prints developed in it in order to reduce the greenish
cast that can be produced. I also used ektonol but found the results too
soft for my purposes. The best results I have archived are with
Zonal-pro's HB
developer.
Frank Tate