Have you dabbled in S2 FM? It looks like you have to re-do the format and materials for models from SFM to S2FM.
By all accounts I've heard, S2FM is both significantly neutered and significantly more broken than SFM. Which is, frankly, impressive.
I've banged this drum plenty times before, and I'll keep on banging on, but Pragma is the future for me. I am hoping that it will be in a place where I can actively animate in it soon.