Learning Curves

This is a wonderful example of advanced Cinema 4D character rigging by Clement Vaucelle of Wipix, which uses xpresso and custom coding (the "secret sauce" of character animation):  

​https://vimeo.com/302309686?embedded=false&source=vimeo_logo&owner=2845272

​This is a great tutorial on the memory delay effect, which can tweaked for use in controlling an IK Spline:

​https://www.youtube.com/watch?v=l-5_lCKqJao