i uploaded a newer version of metaball for maya
in this version you can also resize the metaballs seperatly BUT you can only use one particle system with the specific name of “nparticle1 - nparticleShape 1”.
here is the link:
http://www.newstyle-tm.com/Tutorials/meta.zip
a simple tutorial is also included.
feel free to edit the script.
for any question or suggestion use this email:
morteza.cg@gmail.com