Ninety nine percent of my paper is aged between ten and seventy years of age. All of the Ilfobrom has been good (both the very old yellow packaged boxes and the more recent white and blue). Ilfospeed and Multigrade I've had less luck with - the Ilfospeed seems incapable of getting any true black and some of the Multigrade has been beyond salvation (but I'm referring to II and III here; I can't imagine the IV being bad unless it's been seriously mishandled.) The Kodak Polycontrast I had was actually excellent.