Along with making lots of rigging, weighting, topology and model improvements and adding corrective shapes, I’ve now given the female shape key a body. The rig adapts to the proportional differences via an action that’s driven by the same control that drives the shape key, which should make it possible to accommodate a variety of body shapes.
Oh yeah and I made a walk cycle. 
https://twitter.com/cjones3D/status/1172419286658244610?s=20
Phew!