What if I said that that the marketing both does and doesn't matter? In my opinion, a company can make a "pearl" react like a "solid," and a "solid" react like a "pearl." But in general, they keep everything having their stereotypical reactions to help marketing. I believe that additives can change a reaction. Look at the rocket and sky rocket. They both come at the same surface, but the change in additives make the sky rocket a little longer with more in the backend. They gave it the pearl look and BAM! Market it as a pearl and it fits the stereotype. But because of balls like the tag which someone else stated, you have to look at the intention of a ball too. It is a ton in the back end, but it is also a polished ball, even if it is a solid