The film consists of three layers.
1. protective film for the main film.
2. main film (very thin)
3. screentone (after installation removed).
I like best the grid sheet (blue checked), this is a preview of positioning is 100% possible. Because it's damn hard to adapt a clear film on eg white ground.
I was lucky that the film could be mounted on the first try (well, a grain of dust I had to eliminate in retrospect, for that I need an additional piece of tesa around the film to lupfen).
In the preview I've also found that there is no room for error, which this fits 100%.
Primary target was a film in which I can use my Stylus (in my case a Wacom CS-600CT), and the work.
Other films may be Biller, but also to a much thicker. But did not feel like a rat's tail in relation to the input pin (pin is not writing, the app does not recognize stylus etc.
And all for a film!
Thank you for your interest.