There was a guy at the Texas Pinball Festival selling glass for $25 per sheet (cash).
I got 2 because the price was so good.
I see no cracks or imperfections and the edges are smooth.
I have noticed some glass that was on my machine began to slightly chip on the edges.
The only time you could see the imperfections was when the glass was removed.
This glass that I got for $25 does not seem to have any of those type problems. So far...