I dry my FB prints on fiber glass screens then flatten them in my dry mount press. I have two clean sheets of matte board in the press. I usually turn the press on about twenty minutes before I intend to use it and preheat the press and the boards to 200F. Then put a print or, if there is room, two in the press between the boards. Close the press but don't lock it down. I set a timer for two minutes and after that time remove the print and place it under a weight to cool until the next print is ready. This works well for me.