This thread reminded me that I bought 50 sheets of ulano's EZ film about 6 months ago and only tried a few sheets. So I went out there and found the remaining 48 sheets and spent an hour applying about 40 screens worth of film. We even exposed a few and they work perfectly. I wish they were cheaper, because they sure are quick and easy to use. Kind of makes me want to revisit the use of cap film, although I know the answer already.