When I used one on my tablet i used steinheil ultra crystal. Someone on forum turned me on to this. Please give it a look. Goes on dry, no bubbles and looks and feels like glass. It is truly amazing. I don't use anymore only because I decided it was unneeded. This is not like a phone, does not go in any pockets and screen is not exposed even when not being used. I am the only person who touches this screen and it is covered by a case when not being used. No need for a shield. Fyi, it's only 20 bucks.
EVO-LUTION 3D