Just gets very hard to get an example for yourself. How many Black Madeira trees do you think there are in the South, especially minus TX and LA? At least, with Socorro Black, I know it's basically a strong raspberry taste with a jam texture. Bourjasotte Black, a strong, tangy strawberry taste. Someone even described Col de Dame as having mango accents. Given how much it costs to get a BM, and the low vigor of the tree, I do think some sort of basic description of the flavor is warranted. Lastly, my hobby is puerh tea, where there is a substantial dictionary of tastes and textures, etc, etc, and given the substantial capital investment in acquiring and aging large amounts of tea, this is a rather important aspect and thus not optional. I chose to ask for a contrast with VdB because everyone has easy access to that fruit, and there isn't as much to describe, just what's the difference between the two.