with or without film?

Attention product very well for those who do not apply protective film but useless for everyone else. I received my protective film after this stylus so I could see the difference in use and very large, very little sensitivity once posed film, it must be pressed hard to the screen responds. For use against fluid before laying the film, if you are of those that leaves them blank screen you can go there.
PS: observation from a mini ipad 2.