I see, I happened to just look at this photo and it looked like there was some denting on the front edge.
The 'staking' looks "odd" and would not be what I would consider to be 'functional staking' where the punch is not near the screw (in one instance) and having no effect on the other two screws.
Staking should include the screw slot to act as an anti-vibration 'lock'.
Mine are not the best, but they are not too bad. I can think of lots of Enfields I'd rather have but instead of constantly striving for more, sometimes it's good to be satisfied with what one has...