It seems like what I'm looking for is more of a spring type behavior, but I don't know what could provide that. Syflex spring isn't an option, as I have over 30 blades of grass per shrub, I can't imagine creating a spring for each.
XSI cloth gets close, if I set the stiffness values really high, and a very low mass, but I can't get it to run fast enough.
I've been looking into ICE which I haven't used much yet, but didn't find anything.
Any tips or help would be appreciated!