Hardly, it was an excellent rifle for the money! Im simply saying the Type 81s have some limited qualities that the 58 does not and vice versa.....And that some characteristics are more valuable then fit and finish.
The metallurgy breakages on VZ 58s were very few and far between, especially in the 7.62 models and often didnt happen till the round count approched 5 figures. But still, when comparing the internals... the hammer on a Type 81 for instance looks like a lifter pulled from a tractors engine block where as the striker on a 58 looks like a plunger pulled from a medical syringe.