I've an invisishield screen protector on mine too. Bit pricey @ £15 but they're a good piece of kit indeed, worth investing in. Made myself a little template of the screen that was slightly undersize. I used the template to mirror & profile the invisishield and then 'followed the instructions' to apply it. On touch it feels a little rubbery and the stylus needs a greater prod but nothing major and you soon get used to it. Sorted