I took the opportunity to clean up the changes I made to the Maya Live Link plugin, with a pull-request created here on Github. I am hoping that this merge can make it into 4.23 before it is out of preview as it adds support for streaming curves from custom attributes. Once you start using custom curves it is kinda hard to be without them in production. Live Link gets so much better once one has access to streaming them.
I have a thread with my changes to the plugin here.