There are some issues with this video still, but by and large I think this is a much better head turn.
Issue #1: Every other rotation it skips the back of the head. This was just an error of my cut and paste. It's an easy fix.
Issue #2: There is a slight up and down bump in the rotation. I know the reason for this, but I am not sure I will fix it. It may require starting all over and since the South Park style Soft Ninja is just a learning tool for me, I really don't feel the need to do that.
What happened is this; whenever you create an object it has a center. The center is the center of the screen no matter where you actually create your object. So if I create my object a little off center and never fix that then every rotation of that object will be off center.
Of those 12 heads I only had to make 7 (6 really). 5 are mirror images and the back is simply the front without eyes. However, because my main head's center is slightly off center every time I flipped the head it was out of place. Thus I had to reposition all of the left heads manually. This is where that bumpiness comes from. I fixed it as well as I could without redoing the left heads (which - as previously stated - I'm not about to do).
Anyway, this rotation is much smoother and should allow for a cleaner animation. Now I just need to do 16 body positions and reinsert SP Soft Ninja into my animation. Jeez, this is a lot of work for a learning exercise.