I have an update: The assembly test is good and worked. After Christmas/New Year's, the final assembly will take place and the first 3 backers will receive their new Vi Tubes with newly designed chassis. We originally had 5; 2 of them didn't work out.
After that, the new batch will start production (roughly 4 weeks to produce; this is not exact). The production yield is expected to be much higher and more stable in the next production run. Those will ship out and we will hopefully be able to get all of the SE Tube backers their Vi.
After that, production will continue for the backers with regular Tube editions.
More when we have it.