So, I've had Invisiglass on all my games, but Invisiglass wouldn't fit my Safecracker (no special cut for that machine) . . . so i ordered my first sheet of PDI glass. As everyone has said, i can't really tell the difference in clarity between PDI glass and Invisiglass as far as quality is concerned . . . they are the same.
I did feel the PDI glass was packaged better than the Invisiglass and was as clean as it could be and ready to install right from when I opened it. The PDI glass was wrapped in paper, then bubble wrapped, then put in box, then bubble wrapped and put into another box. The PDI glass is double wrapped and double boxed along with the brown paper to keep it clean. The Invisiglass I have ordered and have on all my other games has always been covered in a light haze of white specs that is a pain in the butt to get off.
Moving forward I'm converting from Invisiglass to PDI glass if the prices stay the same due to this difference in the quality of packaging.