Thanks guys for you comments and shared experience. Further Investigations have come to the result, that there is a Gamma Drop within the first months after production of the unit, no matter if it was used or not.
This can be corrected via Autocal. After this the Units seem to be stable indeed!
The Company that came up with theses “breaking News” was german “precalibration” Company Cine 4 Home.
I can just suggest to be cautious with any Kind of Information of this source, as These “News” seem to be pure “attention-whore-beaviour”….
The also statet shift of the native gamut is also something that I cannot confirm till now.
Greetings
TEX
