Trying to make splash particles spawn from when other particles collide... (Cascade)

I got everything working except I need to get the death-spawned particles to travel away from the collision, basically using the rotation of the xvector of the normal of the collision impact in the world. how do I tell it to use the impact normal to tell the new particles which way to rotate/move?

I’m not a particle expert, but I’d say you will have more joy trying to do this kind of thing in Niagara. Plus, your particle system won’t be phased out in a few years.