Film super if one does not require SP's

Film super if one does not require SP's. The film is super fit, can be applied easily. Small bubbles can simply slide out the edge. Wiping feeling super. But ... the SP's squeals when writing and takes only few strokes of the written letters. Real shame as the film is really great otherwise.

Update: I treated the film with a screen cleaner. Now the SP's no longer squeaks, but writing is still somehow slowed down and not as nice easy as without foil.