Not a fan of black cloud and definitely not a fan of those fast loads. In my experience, they cant hold a decent pattern. I prefer something in the 1300-1400ish range.
there's actually a lot of truth to that on fast loads. And even if steel is shooting 1500 fps at the muzzle, it loses 200 fps at like 30' I believe it is.
Jim Muller of Muller chokes also has a video on fast loads and says they're fine for close range clays bc it can shorten your lead, but that's really their only advantage.
Brandon, the owner of Boss also goes in depth on shotshells, with proven science, explaining why their Bismuth shells are better than any steel load out there. And the fact that it's a smaller company with great values, it's easy to stand behind.