Got some more videos and scripts up:

The raw character skeleton with Expression powered joint deformations:

In depth character control rig demonstration.

Character posed using control rig, and further rig demonstration:

The Python script/tool made to zero out the controls:

This character mesh is weighted with only Expression based joint deformers, and to a max of 4 joints per vertex. The animations can be then exported to game engines of all types, like Unreal, Unity, etc. If your engine doesn’t support dynamic joint deformations, you can always just key/bake them out.

Check out the newly organized Python and MEL pages here and here respectively for more info and to see the scripts.