Clip worked fine as it was on my bike back in the 80's.
First chains from the end of 70's had rather loose fit. Later sideplates needed a plier to squeeze it on the master link. The outer clip extra secuirity.
From last year during the restore I bought a rivet link, solid type. Real PITA! Expensive tool for cut and riveting. Sideplate really hard to mount, need a tool to for it. Riveting the solid link, tool from WHALE, hammer the rivet. Chain is one of the toughest out there DC chains 530 MZX-G
If something wrong, it must be broken. After I finally had managed to rivet it I found an x-ring on the floor. Break the just done link and, used spare master link and did it again with all 4 x-rings correctly placed.
No, master link with clip is much easier.