I have now tested the Overlock 1/4 year and am still satisfied.
The threading is done fairly quickly from the description, also you will already threaded supplied with 4 white bobbins, so you can start right away.
Biggest complaint are the true precise but often difficult-to-read images that are very reminiscent of technical drawings. Here I would have liked one or the other photo at this point !!!
Here are a few photos of the Gritzner on my blog:
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