How to get particles with molecular addon to behave naturally?

Hi all. See this post in Stack Exchange: http://blender.stackexchange.com/questions/31314/cant-get-particles-via-molecular-addon-v1-0-2-to-behave-naturally-e-g-dirt.

I’m trying to create dirt particles that behave like rigid bodies (hence molecular addon) and can react to other rigid bodies in my scene. I also want the dirt to behave like normal dirt, but I’m running into an issue where the particles are very jittery: they bounce around each other, even with a high dampening factor, and they won’t settle or stand still. See video: https://www.youtube.com/watch?v=eyf4aDn08UY.

Does anyone know what I’m perhaps doing wrong, or how to create particles with Molecular addon that behave like natural dirt that settles and remains still?

Thanks!