I find the Stern ones to be thicker and of better quality personally.

They are easy to install and you don't need to remove the playfield despite what some other people say. Just make sure you lightly spray the adhesive side with glass cleaner before you apply, that way you have a bit of wriggle room to reposition them. Otherwise the adhesive is really strong and once you put them down they arnt going to come off easily

Cheers

You need to peel off the paper backing to expose the adhesive side, then lightly spray it with windex or soapy water, then apply

Lightly soapy water worked a treat for me. Plenty of wiggle room, no need to remove PF. Just use a spray bottle and don't go TOO heavy, I sprayed mine and then let the excess drip off onto the floor. Just don't forget to go over everything with a cloth afterwards to squeeze out any excess water.

I am about to install blades from stern on gb. By wetting the backs does it make it easier to put the art in place without removing the playfield. I did art on TWD a long time ago and remember it being a pita but I don't believe I wetted it. I was going to remove the playfield or move it up with some supports but if wetting does the trick it would make my life way easier. Thanks, Mike