Ruben,
The chain of custody is pretty good. I bought the original Vista tree, and supplied the cuttings directly to USDA/UC Davis. They have tested multiple samples, as I understand it, so a mis-label is not likely to have gone un-noticed.
DJ
I have several "Mission" or "Black Mission" figs, and they are all similar, but as with my many Celestes, etc., they are different in performance. "NL" stands above the rest. Some are pretty nasty.
I do have Vistas available, if you want one.
I believe (can't prove) that if Negronne and VdB are/were different figs at one time, they have both been sold under both names, so that when you buy one, it could be either, or maybe something else that is also similar or identical, such as Beers Black, Hardy Black, Petit Negri, Petite Negra, etc., etc. They `
Gorgi
The dark skins tend to react differently with the digital camera, depending on the lighting, and are often bluish as a result. Some day I will have to investigate why that is so. Photographing dark skinned figs is a challenge. Also, many dark sinned figs have a white blush or film on the skin, which we tend to not notice when we see the dark skin. This also plays into the difficulty of photographing them.,