Bumping this thread to add on some of my experiences, which echo those of a few others on here.
In my last band, our guitarist swore by DR Black Beauties on his basses. He convinced me to switch to them on my StingRay, since he felt they worked well on his SUB. I didn't care much for the tone, but he loved the result, so I ran with them for a few months at his insistence.
The first set I bought had a bad G string; the core snapped during installation. The second set seemed fine. Weirdly enough, I had a similar problem the last time I bought DR strings; the core snapped on a Lo-Rider D string. Both had been tuned normally, as I usually tune my basses either EADG or drop-D.
The feel was the worst I'd experienced with any string set, and I didn't realize how bad it was until I started sliding. They felt like they were "burning" my fingertips when I would slide up and down the strings. I originally thought it was because my fingers weren't calloused enough, but I never had this problem with any other strings I had used before. The guitarist thought I was just making up excuses for the occasional playing interruption after a slide.
After I quit the band (long story, but the guitarist was unsurprisingly the biggest reason), I bought a new pack of Ernie Ball Slinkys, my previous brand of choice, and my fingers felt perfectly fine. I haven't had a problem since.
That's the last time I take advice from a guitarist on bass strings.
