Loose foils can be intimidating. We all love it when the foil is tight to the substrate, however, at 100µg/sq.cm, often the foil has begun to self-release from the substrate, tis the nature of the beast!
This could appear to be a problem, when in fact it's not. I'm attaching a video on this subject, of a loose 2"x3" foil, 100µg/sq.cm, video shows one of our technicians floating a loose foil, with very stable hands. :)