Don't know about use with the AD specifically but according to Drew at Moon, per his video, the Black Dragon tends to smooth the highs just a bit and produces a slightly fuller bass. The Blue Dragon is neutral while the all silver Silver Dragon tends to add a bit of sparkle to the top end. However, if you're unsure of the use of the Black Dragon, suggest you contact Drew right away to get his opinion before the cable is constructed - which only takes a day, so time is of the essence. Check out his video too (think it was the Video #2 which discussed the characteristics of the cables, as well as the text on the site).
I believe I have perceived differences between cables, but I still can't help but cringe when I read something like this. Simple changes in FR (i.e. alleged smoothing highs, filling out bass, adding sparkle) would be measurable. Despite the widespread availability of precision audio measurement equipment, or even freeware like diffmaker, no cable manufacturer or enthusiast has ever published anything demonstrating that a short run cable can have this sort of impact on the sound. In fact, many reputable cable makers acknowledge that cables cannot have this sort of impact on sound.
Provided it doesn't all boil down to psychoacoustics, my sense is that we probably just haven't developed the technology or measurement techniques necessary to identify the differences that do result from different cable designs. But the advertising language really does need to change to conform to science if the audio industry is going to maintain its integrity.