[obican]

Actually what I meant by a properly done job was how their focus and aperture rings turn the correct way on every single lens for every manufacturer. Their lens pretty much nail the AI-S lenses as far as the specs and ergonomics go. 

 

If the quality is concerned, I'm not convinced you are getting your money worth with Zeiss ZF/ZE lines at all. Almost all of them are rebadged Contax lenses made by Cosina and as you've said, there are quite usually better options everywhere.