Hey Wes,
just to follow up on what Sven has asked, has there been any progress with the Substance plugins for Modo...specifically Modo 801 sp4? With the current state (mess) of the initial Modo 901 release, and the fact that Modo 801 sp4 seems to be a rock solid performer at the moment, it would be a shame not to be able to use Substances directly inside Modo until, say, Modo 901 sp4...by then, hopefully theFoundry would have gotten rid of all the bugs and given users a stable release...LOL.
Cheers
-Toby