Hi guys,
If anyone is interested in animation or looking for a good body mechanics rig then this might be of interest.
https://gum.co/deerAnimRig
It features low resolution mode for speedy playback, textures for nice playblasting and a lot of useful functions such as space switches on controllers and ik control in both directions from the ankles.
https://static-2.gumroad.com/res/gumroad/4508210000652/asset_previews/ed635393bae09db51e30e4fddff69bc9/retina/DeerSitB_WEB.png