DL PRG-ATL

I'm trying to jumpseat on DL, PRG-ATL. Do these flights ever get weight-restricted? Right now, it shows about 40 open seats with 20 non-revs yielded a net of 20 empty seats. If these flights get weight-restricted, how many seats do they usually leave empty? Thanks.

not that I've seen historically and nothing mentioned in our dlnet pages.
what date? I can watch it for you.
I'm jealous--I love Prague and haven't been since we started the ATL nonstop.