I'm teaching a class at Brooklyn College on Alternative Processes. I'm using Revere Platinum. Great D-max, but I'm getting grainy mid-tones. I've tried fuming the paper and vinegar development, but no change. Maybe not the best paper for cyanotypes.
Very nice, lots of great contrast.
Papers and chemistry are finicky. Ive been trying a few different papers and also just mixed some of Mike Ware's simple formula to try.