So, yes, another Spheres question.

I'm fairly sure we know: HP damage bleed doesn't stack with other HP damage bleeds, and the higher damage one is what actually does damage. That's what I think happens anyway.

But, let's say your target has a 6 damage bleed going. Then say you hit your target with something affected by Razor Claws (Spheres: Alteration), which applies a 1 damage bleed, which stacks with itself, but not with other bleed.
-Does this "stacking" bleed stick around until it surpasses the previous bleed, but not doing anything until then, or is the 1 damage bleed just always "not the largest damage" and therefore, doesn't work at all?

Question about rolling bleed damage. It would seem as though we are supposed to roll bleed damage each time it comes up, if the bleed specifies a roll. How are you supposed to know what's the larger bleed, when one of the bleeds varies?