Irregularities in Makrolon Sheets

[FFrankensteinRecords]

I keep finding what appears to be little bubbles or pits in the surface of brand new blanks.
I can't decide if this is a product of the production process or improper handling/storage from my supplier, or even something else I'm not thinking of.
Anybody else experience this? Is it just something that must be dealt with?
I'm trashing alot of otherwise perfectly good blanks because of this and it sucks.
I've had some little success melting out the smaller imperfections with a torch lighter, but it's time consuming and delicate, and if it's not done right it ruins the blank completely.
Using Makrolon by the way.

[tragwag]

I can't say I've ever had that issue.
Though I have had sheets come not perfectly flat, which gets worse after cutting into circles.