I know this is going to sound really crazy but please hear me out on this:
Right now, as it stands, we are not allowed to discuss hacking of Uru: CC on the Myst Online forums. And talk of Drizzle is also a no-no.
Discussion of Uru: CC hacking is a no-no for mysterious reasons. (I'm under the assumption that it's not a malicious intention on Cyan's part but simply because of a property rights issue of some kind. While discussion of MOUL hacking is not because Cyan wholly owns the rights to MOUL, Uru: CC is still a grey area of some kind that we're not aware of as mere observers.)
Discussion of Drizzle is fairly evident why that is not allowed. Drizzle literally hacks every version of the plasma engine, not just MOUL. It converts all versions (With the exception of RealMyst, currently) to Uru: CC. This includes, Myst V, MQ etc.
My suggestion is this. In order to create a temporary test environment for MOUL created content with the 3dsMax plugin (The only currently available tool, not in development, able to create content for MOUL.) We offer a soultion to Cyan, we develop a branch of drizzle that ONLY converts MOUL content to Uru: CC. Meaning this branch of Drizzle (Maybe we'll call it DrizzleLite) would be a stripped down version that ONLY hacks MOUL files and strips out all Myst V/MQ/Crowthisle etc stuff.
This, if accepted by Cyan, would allow a testing environment for MOULa files created with the 3dsMax plugin, and discussion of how to fully create an age, including testing it, on the MOUL forums. Since DrizzleLite would only hack MOUL stuff it would no longer fall under a violation of the forum polices of MOUL.