My fiber paper retains an annoying curl after washing, and then drying them thru an old Sears electric print dryer. Suggestions to remedy this behavior? We have had single digit temps in Iowa, my darkroom set up and tear down is in the kitchen, where I always try to maintain proper chemical temperatures. Temps may vary slightly over a 3 or 5 hour print period. Should I have concerns, if I am not textbook perfect with my chemical temperatures?