OK.. well that didn't work...

 

Quote - OK so that looks like it will work.. just have to sort out the correct hierarchy..

I'm thinking  lThigh =>lShin(twist & Side Side only)=>Ghost Bone (bend, ERC to shin bend)=>Foot=>toes etc etc...

Will I need to put a limit of zero on the Shin 'Bend' to stop it from changing the orientation of the joint center?  or Will painting all the weights of the bend parameter to 'zero' be sufficient?