Could you post a picture of the Black Gen next to the Noob, and the ARF? A larger, high resolution picture would be great. Side by side in the same light would be very helpful.
You can use this link as an image host... https://postimages.org/
Mate I have White Gen 116520 for now, but I have had Black Gen 116500 for almost a year so can certainly say about the subtlety of concentric circles in 116500 Black. Currently I have ARF White and Noob V2.2 Black. Do let me know if you need any close-up shots of any of the three Daytonas