I just installed the shield on my 8320 and it actually turned out ok, though the instructions were not the best. Going to you website helped. I was a careful as I could be and, still, I did get a small spec of dust under the screen edge. I really can not see it unless the light is just right. I am glad I bought the extra spray bottle, since I had to do a bit of repositioning. So far I am pleased with the results.
Still, I do not think this is for people of average hand eye coordination. Your videos make it look too easy.
Thinking I figured out the process, I decided to install the shield I bought months ago for my tablet computer. What a disater that was. It was impossible to get it right and it was slightly to wide and not quite tall enough. I had to remove it countless times and retryed to position in. It kept getting wrinkles and either sicking too soon or sliding when I wanted it to stick. I was afraid it was about to destroy the screen each time I had to remove it to try again. I stopped trying and just accepted the inadequate result.
Homer Simpson had an easier time making his backyard grill.
Do you guys offer an install service. I would consider paying for it rather than trying again.