Shot my first roll of SFX 200 (120) yesterday, no filter. Looks pretty normal, rated it at EI 100, developed in my usual t-grain developer, Formulary BW-2.
One strange thing I noticed is that, even with Photo-Flo treatment, this film beads water like crazy. My negs have water spots everywhere. I can't remember the last time I saw water spots on Photo-Flo-treated film.