Thank you very much for the detailed information. This was the information I was googling for last night, and I was glad to find it on taschenlampen-forum.de. I’m grateful you posted here in English so I can read without a translator.
Here, I would like to add to your post by providing links to relevant measurements and photos for comparison.
TS10 5800K is on the top left corner of a tile of 9 photos. Compared to my other high CRI and high R9 LEDs (E21A 5000k R9080 and 519A 5000k R9080), TS10 5800k shows fewer reds. I think your measurement of R9 less than 70 reflects this well."