There are single gene, genetic blackbacks. Then there are blackbacks that have a super form. Not all BB are genetic though.

I still haven't figured out what mine is for sure. All I know is she's genetic and creates BB cinnys when bred to a cinny but her "normal" BB offspring, while they are all identical, and have the same broken BB pattern with a continuous line under that section, they are not typical solid BB's. Now I have to breed back one of her offspring to find out if there is a super and why the BB cinnys are so much lighter than other lines of genetic BB cinnys.

From what I've been able to find out, unless it's an already proven line, it takes a couple generations to be able to accurately call it. I know I was confused about mine at first.

Then there are het reds which I don't consider BB because when put to other dark morphs like cinny and black pastel, you get a stripe instead of a BB in the combo. They act more like a green pastel.

But as far as BB's go in general, I'm still learning myself lol!