Whatever. With vz58 2013 they attempted to fiddle with construction without noticing obvious overgas clues. That suggested they did not care to shoot at least few hundred rounds to test it properly. So QA has passed it for mass production.
Oh, and wasn't it a gremlin issue with Cz858 after they converted it to semiautomatic? Seems like every time they do some "improvisations" with this rifle it initially blows up somewhere.
So same story could be with cz958. What if one has undertighten those little screws? The whole thing with that massive scope on the top would move a tiny bit back-and-forth due to recoil, screws would wiggle as well. After shooting n number of rounds before one eventualy would notice a problem the holes and screws would get damaged. Could it be real scenario? Overtightening screws is another scenario of imediate damage. How this rifle is designed against this possibility. Im just guessing based on description of the design, did not handle the gun myself, so may be this possibility is addressed somehow
Im not against this new model. I just would suggest to hold off for a year or so from buying it untill they fix all possible problems reported by its early adopters.