Splining Notes
Start with the root (hip). Hide the legs. Use the edges of the control curves to help see where the arc of the rotation is on a part of the body.
Block to spline in chunks — such as from one contact pose to another. To fix timing, you can go to linear from stepped, so you don’t get the distracted by the overshoot of the splines. Non-animators reading this post have no idea what I just said 
that’s okay, I’m just jotting notes