Curling UGC covers

[travis]

I printed a ton of UGC covers for my collection. Unfortunately when I put the printed covers into the cases the backs of them curled quite noticeably. I printed them on standard bond type paper (20#). I haven't seen a UGC cased collection irl and am not sure if this is normal and I can't tell from the videos on youtube.

Has anyone else encountered this problem? Any solutions? Is this just the way it is?

Thanks in advance!

Also, I tried searching this issue and couldn't find anything. But if my apologies if I just missed it.

[sheep2001]

Don't know what you mean by curling, but most likely poor quality paper.  Have you got a photo of them?

[travis]

I just moved and left and won't have them for another week or two. So, currently I don't.

I guess this means its not normal?

Perhaps it is the paper quality. I read a lot of people not recommending card stock so I thought cheap printer paper would suffice.

[travis]

By curling I mean that the paper is sort of wavey. But this is only the backs.

Once I have some I will post pics if someone doesn't chime based on experience.

[sheep2001]

It's paper quality.  Over saturation of ink on cheap paper.

There are plenty of threads with paper recommendations

[Arseen]

Maybe printed wrong size?
For some reason I have noticed that the extra always tends to go to the back.