SolidPointCollide/SphereCollide - with bounce?

I'm relatively new to Kangaroo, so apologies if this is a simple question:

I'm currently in the middle of designing a display piece whereby hundreds of ping-pong balls are dropped through a sort of "Plinko" assembly. I want to model this reasonably well, to determine whether, over the course of several tests, any of the receivers at the bottom end up consistently empty.

I've used the methodology that was used in the solidParticleCollide.gh example, but the balls don't really have the same "bounce" as a ping-pong ball would.

Is there a way to adequately model this setup with more bounce than the sphereCollide and solidParticleCollide components seem to provide?