I just got to spend a whole day in the dark room and l got to catch up on a few months of negatives. I had some prints l did on both VC RC paper and fixed grade fiber paper. All the negatives were done in pyrocat. I discovered that for the same contrast of fixed grade #2, I had to go to a #4 filter for the rc VC paper. I guess there is a real difference in how the stain works on different kinds of emulsions.