In answer to your question, they fit snug, but sometimes you need tape anyway, and yes it's fine to use it. And PDI is the best out there! I have them on all my machines...but every machine fits differently. Sometimes you'll need tape, sometimes not. (Also depends on your volume/speaker system/shaker motor, etc.)

Just an FYI: They're having some QC issues in Germany, so they won't be available at PDI until probably late March. Sit tight...it's worth it!

PDI is Pinball Decals, Inc.

Email Joey and ask if he actually has them in stock. That might just be a website that isn't updated. The manufacturer just this week posted about a delay. I'll post the link if I can find it...

Yep...here it is. Check the last post:

https://pinside.com/pinball/forum/topic/pdi-glass-not-shipping

Huge difference. At one point, I had three machines lined up with overhead lights on. My wife and son-in-law were looking at the machines and asked me why my LOTR looked so much better than the other two. They pointed out there was no glare on the glass and said it truly looked invisible. The other two had regular glass and Invisiglass. The next day, I ordered two more sheets of PDI and have never looked back.

That will be almost eliminated when you get PDI. Almost.

Cheap-ass.

I can. And have many times. Come on up to North Jersey and I'll show you how awesome PDI is!

Not gonna happen. Of course, I sold you my Invisiglass once I realized how much better PDI was and I put it on my WOZ. There's a huge difference between the two, which is immediately obvious when you put them side by side under overhead lights. (See the YouTube video about this.)

In order to see the difference, though, you have to take the covers off your machines and play them once in a while.