I have had both PDI and Invisiglass right next to each other and could not tell a difference AT ALL (nether could anyone else I showed). They both look fantastic on a pin and make them pop. That said, I give the edge to Invisiglass due to the following:

1. Customer service. Jen is awesome and usually has some great deals if you buy more than 1 sheet.

2. Packaging. PDI packaging and the damn popcorn peanuts...they suck and make a huge mess!

3. Invisiglass is made is the USA. Not a game changer for me, but definitely a plus!

My $.02

Got some Invisiglass today - looks like they now have sanded edges as well.

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I disagree. Have you actually seen the glass on a machine in person?!? The pics online don’t come close to doing it justice. In my opinion, it is one of the best upgrades you can do AND you can almost always transfer to another pin if you want to. It sharpens the whole playfield, reduces glare, and allows you to track the ball better. I have had people almost put their hand through the glass numerous times because it looks like it isn’t there. Really is amazing.

It always cracks me up that people will pay hundreds of dollars for toppers, toys, shooter rods, rails, etc. that have little effect on gameplay, but think an upgrade that directly impacts gameplay is “overpriced”.

Fascinating. I guess if everyone had the same opinion the world would be no fun

I would also say that JJP frequently runs a “buy one, get one half off” promotion - just call and ask! They also combine shipping, so it comes out around the same as Stern HD glass if you buy more than one!